-15872

Appears in sequences

• Convolution of A073145 with A056594.at n=31A075419
• Expansion of x(1-4x)/((1-2x)(1-8x^2)).at n=10A098656
• Irregular triangle, T(n, k) = coefficients of p(x, n), where p(x, n) = (1-2*x)^(n+1) * Sum_{j>=0} j^n*(x/(1-x))^j, read by rows.at n=39A142073
• The infinite Seidel matrix H read by antidiagonals upwards; H = (H(n,k): n,k >= 0).at n=63A236935
• Triangle read by rows, T(n, k) = Sum_{j=0..n} (-1)^(k-j)*Eulerian1(n, j)* binomial(n-j, n-k) for 0 <= k <= n.at n=42A291977
• Expansion of AGM(1,1-16*x) (where AGM denotes the arithmetic-geometric mean).at n=5A323385
• a(n) = E2_{n}(0) with E2_{n} the polynomials defined in A326480.at n=9A326481
• T(n, k) = [x^k] 2^n*(Euler(n, x/2) + Euler(n, x)), where Euler(n, x) are the Euler polynomials. Triangle read by rows, T(n, k) for 0 <= k <= n.at n=45A342314