35550

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, 0, 0), (1, 0, 1), (1, 1, 0)}.at n=9A150065
• Indices k such that 19 plus the k-th triangular number is a perfect square.at n=10A154147
• Number of quadrilaterals in a triangular matchstick arrangement of side n.at n=18A204185