56946domain: NAppears in sequencesNumber of non-degenerate disjunctively-realizable functions of n variables.at n=5A005616Numbers n such that phi(n) | sigma_6(n).at n=11A015764Numbers k such that the decimal part of k^(1/9) starts with a 'nine digits' anagram.at n=18A034284Numbers k such that phi(k) | sigma_18(k).at n=13A094470