56726

Appears in sequences

• Number of nondecreasing -n..n vectors of length 3 whose dot product with some nonincreasing -n..n vector equals 3.at n=35A226400
• Number of 5 X n binary arrays with rows and columns lexicographically nondecreasing and column sums nonincreasing.at n=9A266472
• a(n) = one-half of the number of cells in the central rectangle of the graph described in row 2n+1 of A333288.at n=35A337640
• The index of prime(n) in A337182.at n=43A338222