185955

Appears in sequences

• Number of tree-rooted planar maps with 3 faces and n vertices and no isthmuses.at n=19A006470
• a(n) = Sum_{0<=j<=i<=n} A027157(i, j).at n=12A027166
• Number of arrangements of n indistinguishable balls in n boxes with the maximum number of balls in any box equal to n-4.at n=16A180294