375777

Appears in sequences

• Number of n X 3 0..2 arrays with rows, columns and antidiagonals unimodal and diagonals nondecreasing.at n=7A223928
• a(n) = Sum of (Y(2,p)^2) over the partitions p of n, Y(2,p) = number of part sizes with multiplicity 2 or greater in p.at n=43A302347