69863

Appears in sequences

• a(n) = floor(3rd elementary symmetric function of Sum_{j=1..k} 1/j, k = 1,2,...,n).at n=23A025213
• Number of ways to partition n elements into pie slices of different sizes of at least 2 allowing the pie to be turned over.at n=48A032230
• Number of permutations of n elements whose unsigned reversal distance is k.at n=40A115755
• 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, -1), (-1, 1, 1), (1, -1, 0), (1, 0, 1)}.at n=10A148756
• Triangle read by rows: T(n, k) = number of permutations that are k "block reversals" away from 12...n, for n >= 0, and (for n>0) 0 <= k <= n-1.at n=41A300003
• Number of distinct regions among all circles that can be constructed on vertices of an n-sided regular polygon, using only a compass.at n=25A359046