150946230006
domain: N
Appears in sequences
- Number of bond-rooted polyenoids with n edges.at n=21A000913
- Number of dissections of a polygon.at n=20A003444
- Number of triangulated (n+2)-gons rooted at an exterior edge.at n=21A006078
- a(n) = T(2*n+4, n), array T as in A051168 (a count of Lyndon words).at n=21A050182
- Number of nonequivalent dissections of an n-gon into n-3 polygons by nonintersecting diagonals up to rotation.at n=21A220881
- a(n) = binomial(8*n + 6, 4*n + 1)/(8*n + 6).at n=5A265102