261804

Appears in sequences

• Number of rectangles in a pyramid built with squares. The squares counted in A092498 are excluded.at n=34A134507
• Number of n X 1 0..3 arrays with no element equal to the sum modulo 4 of elements to its left or elements above it.at n=14A238768
• Number of length 4+5 0..n arrays with some three disjoint pairs in each consecutive six terms having the same sum.at n=10A248493
• Number of free pure symmetric multifunctions (with empty expressions allowed) with one atom and n positions.at n=13A277996