Numbers k such that A048675(sigma(k)) is equal to A048675(2*k).

Terms

a(0) =2a(1) =6a(2) =27a(3) =28a(4) =84a(5) =270a(6) =496a(7) =1053a(8) =1120a(9) =1488a(10) =1625a(11) =1638a(12) =3360a(13) =3780a(14) =4875a(15) =8128a(16) =10530a(17) =24384a(18) =66960a(19) =147420a(20) =167400a(21) =406224a(22) =611226a(23) =775000a(24) =872960a(25) =943250a(26) =1097280a(27) =1245699a(28) =1255338a(29) =1303533