Numbers k for which A003973(k) is equal to 2*sigma(k).

Terms

a(0) =6a(1) =14a(2) =15a(3) =35a(4) =286a(5) =470a(6) =715a(7) =874a(8) =969a(9) =2001a(10) =2185a(11) =2261a(12) =3021a(13) =4669a(14) =7049a(15) =10509a(16) =24521a(17) =30362a(18) =34694a(19) =34918a(20) =46189a(21) =54610a(22) =58102a(23) =58179a(24) =62698a(25) =65570a(26) =69513a(27) =73628a(28) =75905a(29) =79431