40788

Appears in sequences

• Number of nonseparable tree-rooted planar maps with n + 3 edges and 4 vertices.at n=5A006412
• Coordination sequence for 6-dimensional cyclotomic lattice Z[zeta_9].at n=11A126899
• a(n) = Sum_{k <= n/2 } k*binomial(n-2k, 3k).at n=21A137359
• a(n) is the sum of the smallest parts of all partitions of n that do not contain 1 as a part.at n=45A182708
• Sum of the even-indexed parts of all partitions of n.at n=27A207382
• Triangle read by rows: T(n,k) is the number of nonseparable tree-rooted planar maps with n edges and k faces, n >= 0, k = 1..n+1.at n=48A342984
• Triangle read by rows: T(n,k) is the number of nonseparable tree-rooted planar maps with n edges and k faces, n >= 0, k = 1..n+1.at n=51A342984
• Number of integer partitions of n whose minima of maximal anti-runs are not all different.at n=41A375404