Triangle 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)^2 + xy*f(x,y)^2.

A086614

Triangle 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)^2 + xy*f(x,y)^2.

Terms

    a(0) =1a(1) =2a(2) =1a(3) =3a(4) =4a(5) =2a(6) =4a(7) =10a(8) =12a(9) =5a(10) =5a(11) =20a(12) =42a(13) =40a(14) =14a(15) =6a(16) =35a(17) =112a(18) =180a(19) =140a(20) =42a(21) =7a(22) =56a(23) =252a(24) =600a(25) =770a(26) =504a(27) =132a(28) =8a(29) =84

External references