6684744

Appears in sequences

• 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.at n=50A356501
• a(n) = A356500(2*n+1, 2*n) for n >= 0.at n=5A356505