-8355840

Appears in sequences

• Expansion of x(1-4x)/((1-2x)(1-8x^2)).at n=16A098656
• E.g.f. A = A(x,m) satisfies: cn(A + x, m) + sn(A - x, m) = 1, where sn(x,m) and cn(x,m) are Jacobi elliptic functions with parameter m, as an irregular triangle of coefficients read by rows.at n=23A319145