Perfect powers such that the two immediately adjacent perfect powers both have an exponent greater than 2.

A340642

Perfect powers such that the two immediately adjacent perfect powers both have an exponent greater than 2.

Terms

    a(0) =4a(1) =9a(2) =25a(3) =225a(4) =676a(5) =2116a(6) =6724a(7) =7921a(8) =8100a(9) =16641a(10) =104329a(11) =131044a(12) =160801a(13) =176400a(14) =372100a(15) =389376a(16) =705600a(17) =4096576a(18) =7306209a(19) =7884864a(20) =47444544a(21) =146385801a(22) =254817369a(23) =373262400a(24) =607622500a(25) =895804900a(26) =1121580100a(27) =1330936324a(28) =1536875209a(29) =2097182025

External references