172374

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, 1), (-1, 1, -1), (1, -1, 1), (1, 0, 0)}.at n=13A148037
• Rainbow Squares: a(n) = number of ways to pair the integers 1 to 2n so that the sum of each pair is a square.at n=26A252897
• Number of nX3 0..1 arrays with every element unequal to 0, 1, 2, 5 or 6 king-move adjacent elements, with upper left element zero.at n=13A304599