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

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Prog

(PARI) is(k) = ispseudoprime(prod(i=1, k, i^!isprime(i)) - prime(k)); \\ Jinyuan Wang, Jan 09 2021

Crossrefs

Cf. A000040, A034386, A049614, A078744.

Sequence in context: A133893 A101647 A155150 * A087663 A355199 A358557

Adjacent sequences: A078742 A078743 A078744 * A078746 A078747 A078748

Keyword

nonn,more

Author

Jason Earls, Dec 21 2002

Extensions

a(16) from Ryan Propper, Feb 12 2007

Status

approved