920550

Appears in sequences

• Stirling numbers of first kind, s(n+3, n), negated.at n=16A001303
• Expansion of (1+x^3*C^3)*C^2, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.at n=12A071735