Numbers k such that the two perfect powers immediately adjacent to k^2 both have exponents greater than 2.
A340643
Numbers k such that the two perfect powers immediately adjacent to k^2 both have exponents greater than 2.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =15a(4) =26a(5) =46a(6) =82a(7) =89a(8) =90a(9) =129a(10) =323a(11) =362a(12) =401a(13) =420a(14) =610a(15) =624a(16) =840a(17) =2024a(18) =2703a(19) =2808a(20) =6888a(21) =12099a(22) =15963a(23) =19320a(24) =24650a(25) =29930a(26) =33490a(27) =36482a(28) =39203a(29) =45795
External references
- oeis: A340643