193723

Properties

Appears in sequences

• Number of subsets of A = {1,2,...,n} that have the same center of gravity as A, i.e., (n+1)/2.at n=23A070925
• 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, 0), (0, 0, -1), (0, 1, 0), (1, 0, 1)}.at n=10A150000
• Prime numbersat n=17472