Numbers k such that k | 9^k + 1.

Terms

a(0) =1a(1) =2a(2) =5a(3) =25a(4) =82a(5) =125a(6) =625a(7) =2525a(8) =3125a(9) =3362a(10) =5905a(11) =12625a(12) =15625a(13) =29525a(14) =63125a(15) =78125a(16) =137842a(17) =147625a(18) =188354a(19) =255025a(20) =315625a(21) =375125a(22) =390625a(23) =738125a(24) =1062625a(25) =1275125a(26) =1578125a(27) =1875625a(28) =1953125a(29) =2982025