55098
domain: N
Appears in sequences
- 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, 0), (-1, 0, 1), (0, 1, 1), (1, -1, 1), (1, 1, -1)}.at n=9A149055
- O.g.f.: Sum_{n>=0} x^n*Product_{k=1..n} (k + x).at n=8A237653
- The number of regions inside a nonagon formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.at n=3A332421
- a(n) = Sum_{k=0..floor(n/2)} |Stirling1(n - k, k)|.at n=10A343579
- Numbers k such that k divides the sum of the digits of k^(3k).at n=23A383746