Triangle of coefficients T(n,k) in g.f. A(x,y) satisfying Sum_{n=-oo..+oo} (-1)^n * (x^n + y*A(x,y))^n = 1 + (y+2)*Sum_{n>=1} (-1)^n * x^(n^2), for n >= 1, as read by rows.
A370040
Triangle of coefficients T(n,k) in g.f. A(x,y) satisfying Sum_{n=-oo..+oo} (-1)^n * (x^n + y*A(x,y))^n = 1 + (y+2)*Sum_{n>=1} (-1)^n * x^(n^2), for n >= 1, as read by rows.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =3a(4) =0a(5) =1a(6) =-1a(7) =9a(8) =0a(9) =1a(10) =9a(11) =-6a(12) =18a(13) =0a(14) =1a(15) =-3a(16) =54a(17) =-19a(18) =30a(19) =0a(20) =1a(21) =22a(22) =-54a(23) =185a(24) =-44a(25) =45a(26) =0a(27) =1a(28) =-9a(29) =264
External references
- oeis: A370040