Numbers k such that sigma(k) = sigma(k+5).

Terms

a(0) =6a(1) =46a(2) =1030a(3) =2673a(4) =4738a(5) =4785a(6) =10437a(7) =14025a(8) =20038a(9) =20326a(10) =23914a(11) =28702a(12) =31101a(13) =39273a(14) =39669a(15) =41349a(16) =41554a(17) =44709a(18) =46366a(19) =55918a(20) =68638a(21) =74205a(22) =93682a(23) =94365a(24) =96790a(25) =103678a(26) =115245a(27) =115642a(28) =124785a(29) =169990