49979

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, 0), (-1, 0, 1), (0, 1, 1), (1, -1, 1), (1, 0, -1)}.at n=9A149063
• Take alternate digits of 2^n.at n=32A268516
• Number of 6-element subsets of [n] having a prime element sum.at n=20A320681
• G.f. satisfies A(x) = 1 + x*A(x) / (1 - x^5*A(x)^2).at n=22A365734