33417

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, 0), (-1, 0, 0), (1, 0, 1), (1, 1, -1)}.at n=10A148788
• Number of nX4 0..2 arrays with no element equal to the sum of elements to its left or one plus the sum of elements above it, modulo 3.at n=8A239026
• Number of (n+1) X (3+1) 0..2 arrays with every 2 X 2 subblock summing to 4 and no 2 X 2 subblock having exactly two nonzero entries.at n=11A251144
• a(n) = (n - 1) * Sum_{k=2..n} A000010(k).at n=47A385682