0,4

Graham et al., Handbook of Combinatorics, Vol. 2, p. 1234.

G.f.: (x^5+x^4+x^3+x^2)/[(1-x^5)(1-x)^2].

Adjacent sequences: A033434 A033435 A033436 this_sequence A033438 A033439 A033440

Sequence in context: A036572 A139328 A134919 this_sequence A024928 A079552 A140949

nonn

njas