Numbers k such that k and k+1 have the same sum of unitary and nonunitary divisors.

Terms

a(0) =14a(1) =957a(2) =1334a(3) =1634a(4) =2685a(5) =20145a(6) =33998a(7) =42818a(8) =74918a(9) =79826a(10) =79833a(11) =84134a(12) =111506a(13) =122073a(14) =138237a(15) =147454a(16) =166934a(17) =201597a(18) =274533a(19) =289454a(20) =347738a(21) =383594a(22) =416577a(23) =440013a(24) =544334a(25) =605985a(26) =649154a(27) =655005a(28) =1642154a(29) =1857513