4,2

G.f.: x^4 / [(1-x)(1+6x+x^2)(1-34x+x^2)].

Cf. A000129. Fourth column of triangle A099927.

Sequence in context: A042626 A107964 A096699 this_sequence A132058 A138660 A025761

Adjacent sequences: A099928 A099929 A099930 this_sequence A099932 A099933 A099934

nonn

Ralf Stephan, Nov 03 2004