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Proth primes of the form 15•2n+1

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Current data

k , b : 15 , 2
Type : 315
Count : 65
Nash : 2873
Max n : 9,000,000
Date : 2024-09-02
1[1], 2[2], 4[3], 9[4], 10[5], 12[6], 27[7], 37[8], 38[9], 44[10], 48[11], 78[12], 112[13], 168[14], 229[15], 297[16], 339[17], 517[18], 522[19], 654[20], 900[21], 1518[22], 2808[23], 2875[24], 3128[25], 3888[26], 4410[27], 6804[28], 7050[29], 7392[30], 19219[31], 21445[32], 21550[33], 24105[34], 24995[35], 34224[36], 34260[37], 43388[38], 48444[39], 61758[40], 184290[41], 294894[42], 300488[43], 403929[44], 483098[45], 635989[46], 701902[47], 734400[48], 1229600[49], 1244377[50], 1276177[51], 1368428[52], 1418605[53], 1597510[54], 1667744[55], 2393365[56], 2785940[57], 2988834[58], 3162659[59], 4246384[60], 4800315[61], 7300254[62], 7619838[63], 9312889[64], 9830108[65]
Remarks :
The sequence A002258 in OEIS
See also Williams 15•16n+1

Notes

  1. Twin n=1
  2. Twin n=2
  3. Is GF Divisor of xGF(3,11,2), Twin n=4, Williams 15•161+1
  4. Is GF Divisor of xGF(7,5,3) [+3]
  5. Is GF Divisor of xGF(9,7,6) [+3], Twin n=10
  6. Is GF Divisor of xGF(11,11,4), Williams 15•163+1
  7. Is GF Divisor of xGF(25,9,2) [+2]
  8. Is GF Divisor of xGF(36,7,5) [+3]
  9. Is GF Divisor of xGF(37,10,7)
  10. Is GF Divisor of xGF(43,7,3) [+3], Williams 15•1611+1
  11. Is GF Divisor of GF(45,8), Williams 15•1612+1
  12. Is GF Divisor of xGF(76,7,5)
  13. Is GF Divisor of xGF(110,5,2) [+2], Williams 15•1628+1
  14. Is GF Divisor of xGF(165,7,2) [+3], Williams 15•1642+1
  15. Is GF Divisor of F(226) [+5]
  16. Is GF Divisor of xGF(294,7,4) [+1]
  17. Is GF Divisor of xGF(337,7,3) [+2]
  18. Is GF Divisor of xGF(514,10,9) [+3]
  19. Is GF Divisor of xGF(519,9,5) [+1]
  20. Is GF Divisor of xGF(650,9,5)
  21. Is GF Divisor of GF(896,3) [+3], Williams 15•16225+1
  22. Is GF Divisor of GF(1513,5) [+3]
  23. Is GF Divisor of xGF(2804,5,2), Williams 15•16702+1
  24. Is GF Divisor of GF(2872,12)
  25. Is GF Divisor of xGF(3125,3,2) [+4], Williams 15•16782+1
  26. Is GF Divisor of xGF(3886,7,5) [+1], Williams 15•16972+1
  27. Is GF Divisor of xGF(4406,9,8) [+1]
  28. Is GF Divisor of GF(6801,6), Williams 15•161701+1
  29. Is GF Divisor of xGF(7048,4,3) [+2]
  30. Is GF Divisor of xGF(7391,11,10), Williams 15•161848+1
  31. Is GF Divisor of xGF(19218,9,7) [+3]
  32. Is GF Divisor of xGF(21443,10,9) [+1]
  33. Is GF Divisor of xGF(21546,11,8)
  34. Is GF Divisor of xGF(24103,10,9) [+1]
  35. Is GF Divisor of GF(24990,3)
  36. Is GF Divisor of xGF(34221,5,3) [+6], Williams 15•168556+1
  37. Is GF Divisor of xGF(34255,9,5) [+1], Williams 15•168565+1
  38. Is GF Divisor of GF(43379,6) [+9], Williams 15•1610847+1
  39. Is GF Divisor of xGF(48443,11,8), Williams 15•1612111+1
  40. Is GF Divisor of xGF(61755,9,2) [+1]
  41. Is GF Divisor of xGF(184288,5,4) [+5]
  42. Is GF Divisor of xGF(294893,11,9)
  43. Is GF Divisor of xGF(300485,4,3) [+6], Williams 15•1675122+1
  44. Is GF Divisor of xGF(403927,4,3) [+5]
  45. Is GF Divisor of xGF(483094,6,5) [+3]
  46. Is GF Divisor of xGF(635988,7,2) [+2]
  47. Is GF Divisor of xGF(701895,6,5) [+2]
  48. Is GF Divisor of xGF(734398,9,5) [+1], Williams 15•16183600+1
  49. Is GF Divisor of xGF(1229599,7,5) [+2], Williams 15•16307400+1
  50. Is GF Divisor of xGF(1244376,7,4) [+2]
  51. Is GF Divisor of GF(1276174,3) [+8]
  52. Is GF Divisor of xGF(1368426,8,5) [+3], Williams 15•16342107+1
  53. Is GF Divisor of xGF(1418603,4,3) [+11]
  54. Is GF Divisor of xGF(1597505,5,3) [+1]
  55. Is GF Divisor of xGF(1667743,8,7) [+1], Williams 15•16416936+1
  56. Is GF Divisor of xGF(2393362,5,4) [+3]
  57. Is GF Divisor of xGF(2785939,7,4) [+2], Williams 15•16696485+1
  58. Is GF Divisor of GF(2988832,8) [+1]
  59. Is GF Divisor of xGF(3162658,10,7) [+2]
  60. Is GF Divisor of GF(4246381,6) [+4], Williams 15•161061596+1
  61. Is GF Divisor of GF(4800313,3) [+5]
  62. Is GF Divisor of xGF(7300253,11,8)
  63. Is GF Divisor of xGF(7619837,11,6) [+1]
  64. Is GF Divisor of xGF(9312887,3,2) [+1]
  65. Is GF Divisor of xGF(9830107,7,6) [+1], Williams 15•162457527+1

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