189630

Appears in sequences

• Number of subsets of { 1, ..., n } containing an A.P. of length 9.at n=23A018794
• Numbers k such that sigma(k+1) = 5*phi(k).at n=14A067263
• Absolute row sums of triangle A106338.at n=6A106339
• Number of ways to partition the set of vertices of a convex {n+8}-gon into 3 non-intersecting polygons.at n=35A350116