1,1

a(n) = A139238(n)/2.

Cf. A001348, A139229, A139235, A139238, A139240, A139242.

Sequence in context: A029766 A088311 A052588 this_sequence A060238 A085495 A119978

Adjacent sequences: A139236 A139237 A139238 this_sequence A139240 A139241 A139242

easy,nonn

Omar E. Pol (info(AT)polprimos.com), Apr 19 2008