317719

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, 0, -1), (1, 0, 0)}.at n=11A148758
• One of the two successive approximations up to 2^n for 2-adic integer sqrt(17). This is the 3 (mod 4) case.at n=17A341539