A078745 Numbers k such that A049614(k) - A000040(k) is prime.
6, 7, 8, 15, 23, 36, 93, 117, 121, 131, 150, 310, 433, 896, 1226, 4439, 11452, 13069
Offset: 1
Programs
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PARI
is(k) = ispseudoprime(prod(i=1, k, i^!isprime(i)) - prime(k)); \\ Jinyuan Wang, Jan 09 2021
Extensions
a(16) from Ryan Propper, Feb 12 2007
a(17)-a(18) from Michael S. Branicky, Aug 10 2024