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

Author

Jason Earls, Dec 21 2002

Keywords

• nonn
• more

Crossrefs

Cf. A000040, A034386, A049614, A078744.

Programs

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