623576

Appears in sequences

• Coordination sequence for A_7 lattice.at n=7A008389
• a(n) = Sum_{i=0..n} C(n+1,i)*C(n-1,i-1)*C(2n-i,n).at n=7A103882
• Number of integer sequences of length n+1 with sum zero and sum of absolute values 14.at n=6A157056
• Number of permutations of 7 copies of 1..n with all adjacent differences <= 1 in absolute value.at n=3A177307
• Triangle read by rows in which T(n,k) is the number of length k chains from (0,0) to (n,n) of the poset [n] X [n] ordered by the product order, 0 <= k <= 2n, n>=0.at n=57A316649
• Number A(n,k) of sequences with k copies each of 1,2,...,n avoiding absolute differences between adjacent elements larger than one; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=58A331562