0,3

G.f.: (-2x^8-x^7-x^6+4x^5+3x^4+4x^3+7x^2+x)/(1-x^3)^3.

Cf. A027626.

Sequence in context: A154018 A021138 A085665 this_sequence A160575 A153586 A153186

Adjacent sequences: A027622 A027623 A027624 this_sequence A027626 A027627 A027628

nonn,frac

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