90222

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, 1), (-1, 1, 0), (1, 0, -1), (1, 1, 0)}.at n=11A148605
• Number of reversed integer partitions of 2n whose half-alternating sum is 0.at n=31A357639
• a(n) = Sum_{k=0..n} binomial(k+2,2) * binomial(k,n-k)^2.at n=10A377145