Numbers k that divide 4^k + 2^k or 8^k + 4^k.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =8a(5) =9a(6) =10a(7) =16a(8) =27a(9) =32a(10) =50a(11) =64a(12) =68a(13) =81a(14) =128a(15) =171a(16) =243a(17) =250a(18) =256a(19) =410a(20) =512a(21) =513a(22) =729a(23) =1024a(24) =1156a(25) =1250a(26) =1539a(27) =2048a(28) =2050a(29) =2056