Numbers k that divide 8^k + 7^k + 6^k + 5^k + 4^k + 3^k + 2^k.

Terms

a(0) =1a(1) =5a(2) =7a(3) =25a(4) =35a(5) =49a(6) =125a(7) =175a(8) =245a(9) =301a(10) =343a(11) =455a(12) =625a(13) =875a(14) =1225a(15) =1295a(16) =1435a(17) =1505a(18) =1715a(19) =1765a(20) =2107a(21) =2191a(22) =2401a(23) =3125a(24) =4375a(25) =6125a(26) =7525a(27) =8575a(28) =10535a(29) =11375