Numbers n such that there exists an x!=n that makes {x,x,x,n} an amicable multiset.

Terms

a(0) =756000a(1) =1220940a(2) =1437480a(3) =1973160a(4) =5019840a(5) =9058140a(6) =9703260a(7) =11058480a(8) =11641680a(9) =13085280a(10) =17089920a(11) =18117000a(12) =19370880a(13) =21282912a(14) =21628080a(15) =25295760a(16) =25585560a(17) =26936640a(18) =27763560a(19) =28191240a(20) =29104200a(21) =29203020a(22) =30450420a(23) =32839560a(24) =33279120a(25) =33398820