0,1

G.f.: (8+1299*x+2724*x^2+343*x^3)/(-1+x)^4 . [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 24 2009]

Sequence in context: A095821 A091868 A162090 this_sequence A001418 A123268 A088080

Adjacent sequences: A017184 A017185 A017186 this_sequence A017188 A017189 A017190

nonn,easy

N. J. A. Sloane (njas(AT)research.att.com).