A176810 Semiprimes of the form 2 * (greater of twin primes).

10, 14, 26, 38, 62, 86, 122, 146, 206, 218, 278, 302, 362, 386, 398, 458, 482, 542, 566, 626, 698, 842, 866, 926, 1046, 1142, 1202, 1238, 1286, 1322, 1622, 1646, 1658, 1718, 1766, 2042, 2066, 2102, 2126, 2186, 2306, 2462, 2558, 2582, 2606, 2642, 2858, 2906

Offset

1,1

Links

Table of n, a(n) for n=1..48.

Formula

a(n)=2*A006512(n).

Crossrefs

Cf. A001359, A006512, A108605.

Sequence in context: A177948 A176140 A031028 * A115603 A074778 A162899

Adjacent sequences: A176807 A176808 A176809 * A176811 A176812 A176813

Keyword

nonn

Author

Juri-Stepan Gerasimov, Apr 26 2010

Extensions

Corrected (122 inserted, 286 replaced by 386, 2202 replaced by 2102 etc.) by R. J. Mathar, Aug 12 2010

Definition corrected by Zak Seidov, May 06 2013

Status

approved