Numbers k that divide 8^k + 7^k + 6^k + 5^k.

Terms

a(0) =1a(1) =2a(2) =6a(3) =13a(4) =58a(5) =169a(6) =2197a(7) =4069a(8) =4303a(9) =28561a(10) =52897a(11) =89078a(12) =122681a(13) =145457a(14) =234526a(15) =371293a(16) =442074a(17) =687661a(18) =1273597a(19) =1558427a(20) =1664221a(21) =2684903a(22) =3080233a(23) =4826809a(24) =6589141a(25) =7104253a(26) =8939593a(27) =10178701a(28) =14273909a(29) =16556761