G.f.: A(x) = ( G(x)^5 - G(x^5) - 5*x*((1-x^4)/(1-x))/(1-x^5) )/(25*x^2) where G(x) is the g.f. of A110631.

A111583

G.f.: A(x) = ( G(x)^5 - G(x^5) - 5*x*((1-x^4)/(1-x))/(1-x^5) )/(25*x^2) where G(x) is the g.f. of A110631.

Terms

    a(0) =1a(1) =4a(2) =14a(3) =38a(4) =93a(5) =202a(6) =400a(7) =736a(8) =1260a(9) =2046a(10) =3158a(11) =4676a(12) =6672a(13) =9231a(14) =12441a(15) =16353a(16) =21130a(17) =26779a(18) =33463a(19) =41379a(20) =50568a(21) =61238a(22) =73726a(23) =88348a(24) =104915a(25) =124266a(26) =146833a(27) =172020a(28) =200771a(29) =233777

External references