131732

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, 1), (-1, 1, 0), (1, -1, 1), (1, 0, 0), (1, 1, -1)}.at n=11A148254
• Dirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^(2^(k - 1)).at n=17A329800
• Number of permutations of {1..n} with three consecutive terms in arithmetic progression.at n=9A333631
• Euler transform of A055457.at n=43A373296