2,2

a(n) = A086786(n, 2)-A086786(n, 1) = (A087309(n)-A087308 (n))/(n-1)

Cf. A086786, A087308, A087309.

Sequence in context: A130865 A105725 A005226 this_sequence A130087 A085087 A072983

Adjacent sequences: A087307 A087308 A087309 this_sequence A087311 A087312 A087313

more,nonn

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 02 2003

Edited and extended by David Wasserman (dwasserm(AT) earthlink.net), Jan 08 2006