166121

Appears in sequences

• Numbers k such that sigma(k) mod pi(k) = 1.at n=25A073723
• 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, 0, 1), (-1, 1, 0), (0, -1, 1), (1, 1, -1), (1, 1, 1)}.at n=9A149792