Numbers n such that n and n+1 have same sum of anti-divisors.

Terms

a(0) =1a(1) =8a(2) =17a(3) =120a(4) =717a(5) =729a(6) =957a(7) =8097a(8) =10785a(9) =12057a(10) =35817a(11) =44817a(12) =52863a(13) =58677a(14) =59757a(15) =76759a(16) =95397a(17) =102957a(18) =114117a(19) =119337a(20) =182157a(21) =206097a(22) =215997a(23) =230037a(24) =253977a(25) =263877a(26) =269277a(27) =271797a(28) =295377a(29) =321417