138107

Properties

Appears in sequences

• Primes p that have at least four primitive roots that are not primitive roots mod p^2.at n=7A060520
• 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, 0), (0, -1, 1), (0, 1, -1), (1, -1, 0), (1, 1, 1)}.at n=9A149776
• Prime numbersat n=12850