216546

Appears in sequences

• Number of n-stacks with strictly receding walls, or the number of Type A partitions of n in the sense of Auluck (1951).at n=55A001522
• a(n) = n*(n-1)*(n^2 + 2)/6.at n=34A071244
• Numbers k that divide the sum of the digits of k^k.at n=24A108827