5126901

Appears in sequences

• Boustrophedon transform of triangular numbers 1,1,3,6,10,...at n=11A000718
• 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, 1), (-1, 1, 1), (1, 0, -1), (1, 0, 0)}.at n=13A148757