1,2

2*primes - 3. Right broder of triangle A131424.

a(4) = 11 = 2*p(4) - 3 = 2*7 - 3.

Cf. A000040, A131424.

Sequence in context: A134442 A094179 A085760 this_sequence A080978 A160216 A002145

Adjacent sequences: A131423 A131424 A131425 this_sequence A131427 A131428 A131429

nonn

Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 10 2007