40717

Appears in sequences

• Strong pseudoprimes to base 59.at n=29A020285
• T(2n-1,n-1), T given by A026568.at n=8A026577
• T(n,[ n/2 ]), T given by A026568.at n=17A026579
• a(n) = T(2*n-1, n-1), where T is given by A026584.at n=8A026593
• a(n) = T(n, floor(n/2)), where T is given by A026584.at n=17A026595
• 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, 1, -1), (1, -1, 1), (1, 0, 0), (1, 1, 1)}.at n=8A150531