298743

Appears in sequences

• Number of ordered 5-tuples of integers from [ 1,n ] with no common factors among triples.at n=37A015656
• 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, 1, 1), (0, 1, -1), (1, -1, 1), (1, 0, 0)}.at n=11A148416