113711

Appears in sequences

• Half the number of n X n nonnegative integer arrays with every 2 X 2 subblock summing to 2.at n=13A145012
• 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, -1, 1), (-1, 1, -1), (-1, 1, 0), (1, 0, 0)}.at n=13A148052