22804

Appears in sequences

• Number of trees on n nodes with forbidden limbs.at n=9A014271
• Sequence of numerators of the continued fraction derived from the sequence of the number of distinct factors of a number (A001221, also called omega(n)).at n=18A112595
• Triangle read by rows: T(n,k) is the number of weighted lattice paths in L_n having k peaks.The members of L_n are paths of weight n that start at (0,0), end on the horizontal axis and whose steps are of the following four kinds: an (1,0)-step with weight 1, an (1,0)-step with weight 2, a (1,1)-step with weight 2, and a (1,-1)-step with weight 1. The weight of a path is the sum of the weights of its steps. A peak is a (1,1)-step followed by a (1,-1)-step.at n=47A182903
• Number of distinct products of distinct factorials up to n!.at n=17A255937
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 419", based on the 5-celled von Neumann neighborhood.at n=32A272047
• Sum of the next n positive integers repeated (A008619).at n=44A319006
• Number of integer points in the convex hull in R^n of parking functions of length n.at n=5A333331
• Number of Grassmannian permutations of size n that avoid a pattern, sigma, where sigma is a pattern of size 9 with exactly one descent.at n=15A362196