6643900

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, -1), (-1, -1, 0), (-1, 1, 1), (0, 1, 0), (1, 0, 0)}.at n=13A149931
• Number of self-inverse permutations p on [n] with displacement of elements restricted by 6: |p(i)-i| <= 6.at n=17A239078