Numbers k that divide 10^k + 4^k.

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =8a(5) =16a(6) =32a(7) =49a(8) =58a(9) =64a(10) =128a(11) =136a(12) =256a(13) =343a(14) =512a(15) =1024a(16) =1552a(17) =1682a(18) =2048a(19) =2312a(20) =2401a(21) =2564a(22) =4096a(23) =6176a(24) =8192a(25) =11179a(26) =16384a(27) =16807a(28) =24059a(29) =32768