A178656 The positions of products of 2 primes that are the differences of 2 primes in A002808.

1, 2, 4, 5, 8, 13, 15, 21, 22, 35, 38, 41, 59, 61, 63, 87, 90, 92, 107, 110, 136, 144, 155, 158, 165, 166, 215, 227, 232, 235, 240, 252, 254, 283, 286, 306, 316, 330, 360, 363, 366, 386, 398, 408, 435, 437, 438, 459, 467, 483, 507, 530, 557, 560, 568, 571, 589

Offset: 1

Author

Juri-Stepan Gerasimov, Jun 01 2010

Keywords

• nonn

Comments

The positions of A124588(m)*A124588(k) in A002808.

Formula

A002808(a(n))=A124588(m)*A124588(k).

Extensions

Corrected (254 inserted) by R. J. Mathar, Jun 04 2010