378648

Appears in sequences

• p-INVERT of (1,1,1,1,1,...), where p(S) = (1 - S^3)^2.at n=18A291014
• a(n) = Sum_{k=0..n} binomial(3*n, n-k) * v(k), where v(k) is the number of overpartitions of n (A015128).at n=7A356290