628805
domain: N
Appears in sequences
- Number of closed walks of length 2*n on the 5-cube.at n=5A121822
- a(n) = 30240*n^5-25200*n^4+5040*n^3+7320*n^2-2638*n+1.at n=2A272128
- Array read by antidiagonals: A(n, L) is the number of closed walks of length 2L along the edges of an n-cube based at a vertex, for n >= 1 and L >= 1.at n=40A286899
- A(n, k) = (m*k)! [x^k] MittagLefflerE(m, x)^n, for m = 2, n >= 0, k >= 0; square array read by descending antidiagonals.at n=60A326476
- a(n) = (2*n)! * [x^(2*n)] cosh(x)^n.at n=5A381459