A154318 Numbers n such that nonprime(prime(n))+1 is prime.

1, 2, 4, 5, 10, 14, 16, 18, 21, 25, 34, 35, 41, 48, 61, 65, 70, 74, 89, 91, 94, 100, 109, 114, 120, 129, 138, 149, 155, 156, 157, 160, 171, 181, 182, 195, 200, 204, 208, 212, 216, 227, 233, 234, 240, 241, 243, 250, 257, 264, 265, 268, 273, 276, 280, 289, 292, 295, 304

Offset

1,2

Comments

Where n-th nonprime is A141468(n): 0, 1, 4, 6, ....

Links

Table of n, a(n) for n=1..59.

Crossrefs

Sequence in context: A133585 A218936 A264855 * A008283 A002237 A329136

Adjacent sequences: A154315 A154316 A154317 * A154319 A154320 A154321

Keyword

nonn,easy,less

Author

Juri-Stepan Gerasimov, Jan 07 2009

Extensions

Extended and edited by Charles R Greathouse IV, Mar 31 2010

Status

approved