Numbers k such that k^6 is sum of two positive 7th powers.

Terms

a(0) =64a(1) =8192a(2) =139968a(3) =1048576a(4) =5000000a(5) =17915904a(6) =52706752a(7) =134217728a(8) =306110016a(9) =640000000a(10) =1247178944a(11) =2293235712a(12) =4015905088a(13) =6746464256a(14) =10935000000a(15) =17179869184a(16) =26261675072a(17) =39182082048a(18) =57207791296a(19) =81920000000a(20) =115269666624a(21) =159638904832a(22) =217908828608