79898

Appears in sequences

• phi(s(n^3)) is a square, where s(n) is sigma(n)-n (A001065).at n=28A063798
• 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, -1, 0), (-1, -1, 1), (-1, 1, 0), (1, 0, 0)}.at n=13A148045
• Numbers k such that 309*2^k+1 is prime.at n=41A323144
• a(n) = Sum_{k=0..floor(n/3)} binomial(n,k) * binomial(2*k,n-3*k).at n=15A389125