67977domain: NAppears in sequencesStirling numbers of the first kind: s(n+2, n).at n=26A000914a(n) = n*(27*n^3 + 22*n^2 - 21*n - 16)/12.at n=13A172085Ordered Stirling numbers S1(n,k) >= 0.at n=36A193245The larger companion to the deficient numbers in A212608.at n=20A212609