A291863 Primes of the form 43^k + 4.
5, 47, 271818611111, 1718264124282290785247, 5874403106360420018879553647, 802525857116673306810957202573831816754829436253827247, 17343773367030267519903781288812032158308062539012091953077767198995511
Offset: 1
Keywords
Links
- F. Firoozbakht and M. F. Hasler, Variations on Euclid's formula for Perfect Numbers, JIS 13 (2010) #10.3.1.
- Henri & Renaud Lifchitz, PRP Records
- OpenPFGW Project, Primality Tester
Crossrefs
Cf. A230433.
Programs
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Mathematica
Select[Table[43^k+4, {k, 0, 100}], PrimeQ[#] &]