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Proth primes of the form 10•3n+1

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Current data

k , b : 10 , 3
Count : 33
Nash : 2171
Max n : 200,000
Date : 2020-09-13
1[1], 3[2], 4[3], 7, 9[4], 12[5], 18[6], 22[7], 102[8], 112[9], 157, 162[10], 289, 619, 763, 1389, 1783, 1882[11], 3294[12], 3567, 13297, 14932[13], 18954[14], 19612[15], 23598[16], 33882[17], 66874[18], 70546[19], 86568[20], 187626[21], 190738[22], 1153674[23], 3550446[24]
Remarks :
The sequence A005539 in OEIS
For additional even n history, see Williams 10•9n+1

Notes

History