99475

Appears in sequences

• Beginning of n consecutive quadratic residues mod A025046(n).at n=33A048282
• 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), (0, 0, 1), (0, 1, -1), (1, -1, 0)}.at n=12A148102
• a(n) = a(n-1) + a(n-2) + n + 2 with n>1, a(0)=a(1)=0.at n=21A210730