5870592domain: NAppears in sequencesNegated coefficients of Chebyshev T polynomials: a(n) = -A053120(n+10, n), n >= 0.at n=11A006975Triangular array read by rows: T(n,k) is the number of connected components with size k summed over all simple labeled graphs on n nodes; n>=1, 1<=k<=n.at n=40A223894