Root of the upper member A340701 of a pair of adjacent perfect powers, both with exponents > 2.

Terms

a(0) =2a(1) =3a(2) =2a(3) =2a(4) =2a(5) =11a(6) =13a(7) =37a(8) =39a(9) =58a(10) =6a(11) =26a(12) =28a(13) =146a(14) =23a(15) =69a(16) =294a(17) =339a(18) =13a(19) =458a(20) =508a(21) =53a(22) =797a(23) =905a(24) =927a(25) =1077a(26) =215a(27) =217a(28) =1771a(29) =1797