79422

Appears in sequences

• Direct matrix (non-recursive) content of -n to n+1 symmetry matrices.at n=26A105110
• Row sums of number triangle A110180.at n=11A110181
• 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, 0, 0), (0, -1, 1), (0, 1, -1), (1, 0, 1)}.at n=10A148933
• Number of pairs of intersecting diagonals in the interior and exterior of a regular n-gon.at n=28A211380
• Number of intersections of diagonals in the interior and exterior of a regular n-gon.at n=28A211383
• a(n) = 2*A000447(n).at n=31A259110
• Number of factorizations of n into factors (greater than 1) of n kinds.at n=41A329365