A173905 {2,3} and the nonprimes A141468.

0, 1, 2, 3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93

Offset: 1

Author

Juri-Stepan Gerasimov, Mar 02 2010

Keywords

• nonn
• less

Comments

Essentially the same as A002808, A141468, A018252, A065090, A171581 and A056653.

Crossrefs

Cf. A141468.

Extensions

Replaced the 4-fold negation in the definition by a simpler phrase - R. J. Mathar, Mar 05 2010