87771

Appears in sequences

• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, 1), (0, -1), (0, 1), (1, 0)}.at n=11A151412
• Numbers k such that k![4] - 128 is prime, where k![4] = A007662(k) = quadruple factorial.at n=47A329176