Numbers k such that phi(k + 8) | sigma(k) + 8.

Terms

a(0) =7a(1) =27a(2) =56a(3) =91a(4) =112a(5) =156a(6) =355a(7) =988a(8) =8925a(9) =28518a(10) =36655a(11) =76999a(12) =132943a(13) =360432a(14) =683575a(15) =1412464a(16) =3430111a(17) =11097188a(18) =83623927a(19) =404412907a(20) =288039497527