A175612 Pairs of cousin semiprimes (m, m+4).

6, 10, 10, 14, 21, 25, 22, 26, 34, 38, 35, 39, 51, 55, 58, 62, 65, 69, 82, 86, 87, 91, 91, 95, 111, 115, 115, 119, 118, 122, 119, 123, 129, 133, 141, 145, 142, 146, 155, 159, 183, 187, 201, 205, 202, 206, 205, 209, 209, 213, 213, 217, 214, 218, 215, 219, 217, 221

Offset

1,1

Links

Table of n, a(n) for n=1..58.

Mathematica

SequencePosition[PrimeOmega[Range[300]], {2, _, _, _, 2}] // Flatten (* Jean-François Alcover, Feb 10 2018 *)

Crossrefs

Cf. A077800.

Sequence in context: A334937 A003862 A127019 * A024746 A111093 A144394

Adjacent sequences: A175609 A175610 A175611 * A175613 A175614 A175615

Keyword

nonn

Author

Juri-Stepan Gerasimov, Jul 24 2010

Extensions

Edited and terms checked by D. S. McNeil, Nov 26 2010

Status

approved