26866

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, 0, 1), (0, -1, 1), (0, 1, 0), (1, 0, 0), (1, 1, -1)}.at n=8A150182
• a(n) = 2^(prime(n)-1) mod prime(n)^2.at n=45A196202
• Number of n X 6 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=6A207167
• Number of 7 X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=5A207175
• Number of (n+2)X(2+2) 0..3 arrays with every 3X3 subblock row and column sum 1 3 6 or 8 and every diagonal and antidiagonal sum not 1 3 6 or 8.at n=9A252009
• Two-column table read by rows: Primitive distinct pairs that have the same value of phi, sigma, and tau.at n=31A322688
• Number of integer compositions of n whose leaders of anti-runs are distinct.at n=18A374518