Numbers n such that sigma(n)+n divides sigma(n^2).

Terms

a(0) =84889a(1) =376443a(2) =1260615a(3) =2703555a(4) =4883751a(5) =7551847a(6) =8894695a(7) =9387081a(8) =10142181a(9) =12600825a(10) =39450985a(11) =57924711a(12) =72978693a(13) =73534503a(14) =166503105a(15) =428777995a(16) =563715879a(17) =578643967a(18) =583540893a(19) =1181555907a(20) =1598569785a(21) =1779455211a(22) =2917138191a(23) =3078534559a(24) =3318534361