129550
domain: N
Appears in sequences
- Super-5 Numbers (5 * n^5 contains substring '55555' in its decimal expansion).at n=25A032745
- Triangle read by rows: T(n,k) is the number of polyominoes, i.e., connected nonempty subsets of square cells (or vertices), of the n X k flat torus, up to cyclic shifts and reflections of rows and columns; 1 <= k <= n.at n=14A385381
- Number of polyominoes, i.e., connected nonempty subsets of square cells (or vertices), of the n X n flat torus, up to cyclic shifts and reflections of rows and columns.at n=4A385382