G.f. A(x,y) satisfies: x*y = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x,y)^n, with coefficients T(n,k) of x^n*y^k in A(x,y) given as a triangle read by rows.
A355350
G.f. A(x,y) satisfies: x*y = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x,y)^n, with coefficients T(n,k) of x^n*y^k in A(x,y) given as a triangle read by rows.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =3a(5) =1a(6) =0a(7) =9a(8) =6a(9) =1a(10) =0a(11) =22a(12) =27a(13) =10a(14) =1a(15) =0a(16) =51a(17) =98a(18) =66a(19) =15a(20) =1a(21) =0a(22) =108a(23) =315a(24) =340a(25) =135a(26) =21a(27) =1a(28) =0a(29) =221
External references
- oeis: A355350