1,2
a(n) = a(n-4)+8. O.g.f.: 2/(-1+x)^2+1/[2(x^2+1)]+7/[4(-1+x)]+1/[4(x+1)] . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 10 2008
Sequence in context: A162202 A156165 A024968 this_sequence A138972 A050110 A003661
Adjacent sequences: A047408 A047409 A047410 this_sequence A047412 A047413 A047414
nonn,more
N. J. A. Sloane (njas(AT)research.att.com).
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