-2296
domain: Z
Appears in sequences
- Triangle T, read by rows, equal to the matrix product T = H*C*H, where H is the self-inverse triangle A118433 and C is Pascal's triangle.at n=39A118438
- Exponential Riordan array (e^(-x(1+x)),x).at n=39A122833
- Matrix inverse of triangle A136501, read by rows.at n=24A136502
- Triangle formed by coefficients of the expansion of p(x, n), where p(x,n) = (1+x-x^3)^(n+1)*Sum_{j >= 0} (j+1)^n*(-x + x^3)^j.at n=55A156896
- Expansion of modular form (E6(q)+8*E6(q^2))/9, where E6 = A013973.at n=2A198948
- E.g.f. C = C(x,y) satisfies: A^2 + B^2 + C^2 = 1 + y^2 and A^3 + B^3 + C^3 = 1 + y^3, where functions A = A(x,y) and B = B(x,y) are described by A278885 and A278886, respectively.at n=54A278887