118998

Appears in sequences

• Number of tree-rooted planar maps with 4 faces and n vertices and no isthmuses.at n=6A006471
• Number of 2 X n 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=12A281766
• Triangle read by rows: T(n,k) is the number of tree-rooted planar maps with n edges, k faces and no isthmuses, n >= 0, k = 1..n+1.at n=48A342987