Expansion of (1+x)*c(x)^3/(1-x*c(x)^3), c(x) the g.f. of A000108.

A165203

Expansion of (1+x)*c(x)^3/(1-x*c(x)^3), c(x) the g.f. of A000108.

Terms

    a(0) =1a(1) =5a(2) =20a(3) =81a(4) =332a(5) =1372a(6) =5702a(7) =23793a(8) =99576a(9) =417664a(10) =1754866a(11) =7383204a(12) =31096466a(13) =131084954a(14) =552969854a(15) =2334012425a(16) =9856336324a(17) =41639407776a(18) =175971686398a(19) =743888534968

External references