Triangle of coefficients, read by rows, where T(n,k) is the coefficient of x^n*y^k in f(x,y) that satisfies f(x,y) = 1/(1-x) - x^2/(1-x)^3 + xy*f(x,y)^3.
A086632
Triangle of coefficients, read by rows, where T(n,k) is the coefficient of x^n*y^k in f(x,y) that satisfies f(x,y) = 1/(1-x) - x^2/(1-x)^3 + xy*f(x,y)^3.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =0a(4) =3a(5) =3a(6) =-2a(7) =3a(8) =15a(9) =12a(10) =-5a(11) =-5a(12) =30a(13) =84a(14) =55a(15) =-9a(16) =-27a(17) =0a(18) =252a(19) =495a(20) =273a(21) =-14a(22) =-63a(23) =-180a(24) =252a(25) =1980a(26) =3003a(27) =1428a(28) =-20a(29) =-99
External references
- oeis: A086632