357696

Appears in sequences

• Number of loopless tree-rooted planar maps with 3 vertices and n faces and no isthmuses.at n=22A006428
• Number of nonoverlapping placements of one 1 X 1 square and one 2 X 2 square on an n X n board.at n=24A173963
• T(n,k)=Number of nXk arrays of permutations of 0..n*k-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 6.at n=29A264709
• Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 6.at n=6A264710