A173672 Positive differences between any two primes without the differences that are semiprimes.

1, 2, 3, 5, 8, 11, 12, 16, 17, 18, 20, 24, 27, 28, 29, 30, 32, 36, 40, 41, 42, 44, 45, 48, 50, 52, 54, 56, 59, 60, 64, 66, 68, 70, 71, 72, 76, 78, 80, 81, 84, 88, 90, 92, 96, 98, 99, 100, 101, 102, 104, 105, 107, 108, 110, 112, 114, 116, 120, 124, 125, 126, 128, 130, 132, 135, 136, 137, 138, 140, 144, 147, 148

Offset: 1

Author

Juri-Stepan Gerasimov, Nov 24 2010

Keywords

• nonn

Crossrefs

Cf. A173656.

Cf. A030173, A001358.

Formula

A030173 \ A001358. [R. J. Mathar, Nov 25 2010]

Extensions

Sequence corrected by R. J. Mathar, Nov 25 2010