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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, 12, 18, 22[4], 102[5], 112, 157, 162, 289, 619, 763, 1389, 1783, 1882, 3294, 3567, 13297, 14932, 18954, 19612, 23598, 33882, 66874, 70546, 86568, 187626, 190738, 1153674, 3550446
Remarks :
The sequence A005539 in OEIS
See also Williams 10•9n+1

Notes

  1. ↑ Twin n=1
  2. ↑ Twin n=3
  3. ↑ Twin n=4
  4. ↑ Twin n=22
  5. ↑ Twin n=102

History

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