1,1

Semiprime analogue of A117048 Prime numbers which are expressible as the sum of two triangular numbers.

A020756 intersection A001358.

Cf. A001358, A020756, A117048.

Sequence in context: A064973 A133764 A139558 this_sequence A110602 A122635 A007936

Adjacent sequences: A119958 A119959 A119960 this_sequence A119962 A119963 A119964

easy,nonn

Jonathan Vos Post (jvospost2(AT)yahoo.com), Aug 02 2006