72555

Appears in sequences

• a(n) = (n+2)*(n+1)*(n^2 + 7*n - 12)/24.at n=33A014309
• Number of ordered trees with n edges, with thinning limbs and with root of degree 2. An ordered tree with thinning limbs is such that if a node has k children, all its children have at most k children.at n=15A124329
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, 0), (0, 1, -1), (1, 0, 1), (1, 1, 1)}.at n=8A150971
• Numbers k such that k^2 +- k +- 1 is prime for all four possibilities.at n=15A236056
• The number of P-positions in the game of Nim with up to 5 piles, allowing for piles of zero, such that the number of objects in the largest pile is n.at n=35A241731