137475

Appears in sequences

• Related to enumeration of free catapolyoctagons (see Cyvin reference for precise definition).at n=7A121120
• Number of strict compositions of n with no three consecutive parts in arithmetic progression.at n=35A325849
• Numbers of squares and rectangles of all sizes in 3*n*(n+1)/2-ominoes in form of three-quarters of Aztec diamonds.at n=25A338996