79870

Appears in sequences

• Triangle of 3-Narayana numbers, N(n,k), for n >= 1, 0 <= k <= 2n-2.at n=52A087647
• Number of even permutations s of {1,2,...,n} such that |s(i)-i| > 1 for each i=1,2,...,n.at n=10A293044