A076200 a(n) equals the least s>0 such that n!! + s^3 is prime.

1, 1, 2, 2, 5, 2, 5, 2, 11, 4, 17, 8, 43, 2, 19, 2, 19, 4, 13, 32, 23, 4, 47, 2, 37, 74, 23, 86, 43, 122, 149, 128, 19, 146, 29, 226, 31, 64, 53, 2, 23, 134, 43, 268, 103, 134, 59, 64, 43, 4, 101, 16, 61, 346, 229, 278, 103, 16, 41, 64, 127, 2, 181, 302, 151, 146, 191, 262

Offset

1,3

Links

Table of n, a(n) for n=1..68.

Crossrefs

Cf. A057019.

Sequence in context: A153078 A245565 A233468 * A039931 A128645 A007610

Adjacent sequences: A076197 A076198 A076199 * A076201 A076202 A076203

Keyword

nonn

Author

Zak Seidov, Nov 02 2002

Status

approved