66791

Properties

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, 0), (-1, 0, 0), (0, 1, 1), (1, 0, -1), (1, 1, -1)}.at n=10A148926
• Least k such that 2^(2^k) = n (mod k).at n=41A155886
• Primes p such that 16*p^2 + 10*p + 1 divides 2^p - 1.at n=23A231916
• Primes which contain the fax number of the beast (667).at n=32A321001
• Prime numbersat n=6656