239327domain: NAppears in sequencesNumber of zeros in character table of symmetric group S_n.at n=20A006907Triangle of coefficients T[n,m] of polynomials n, n^2, (n+2n^3)/3, n^2(2+n^2)/3, n(3+10n^2+2n^4)/15, etc. after multiplication by the denominators (A049606).at n=69A064984