Coefficients T(n,k) of x^(4*n+1-k)*y^k in A(x,y) for n >= 0, k = 0..3*n+1, where A(x,y) satisfies: y = Sum_{n=-oo..+oo} (-x)^(n^2) * A(x,y)^((n-1)^2), as an irregular triangle read by rows.
A356501
Coefficients T(n,k) of x^(4*n+1-k)*y^k in A(x,y) for n >= 0, k = 0..3*n+1, where A(x,y) satisfies: y = Sum_{n=-oo..+oo} (-x)^(n^2) * A(x,y)^((n-1)^2), as an irregular triangle read by rows.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =3a(4) =6a(5) =4a(6) =1a(7) =0a(8) =9a(9) =54a(10) =120a(11) =135a(12) =84a(13) =28a(14) =4a(15) =0a(16) =22a(17) =294a(18) =1360a(19) =3250a(20) =4662a(21) =4284a(22) =2568a(23) =981a(24) =219a(25) =22a(26) =0a(27) =51a(28) =1260a(29) =10120
External references
- oeis: A356501