A370557 Numbers k such that A362555(k) = (5^k + 5*k)/5 is prime.
1, 2, 1014, 16058
Offset: 1
Programs
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PARI
is(n) = ispseudoprime(5^(n-1)+n)
This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
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