This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A340696 #11 Jan 23 2022 21:06:11 %S A340696 64,243,279841,62742241,418161601,149398068185838130176 %N A340696 Lower of a pair of adjacent perfect powers x^p and y^q with p, q >= 4. %C A340696 If it exists, the next term is > 10^34. %C A340696 There are no more terms up to 10^36. - _Jon E. Schoenfield_, Jan 23 2022 %e A340696 n a(n) A340697(n) %e A340696 1 64 = 2^6, 81 = 3^4 %e A340696 2 243 = 3^5, 256 = 2^8 %e A340696 3 279841 = 23^4, 279936 = 6^7 %e A340696 4 62742241 = 89^4, 62748517 = 13^7 %e A340696 5 418161601 = 143^4, 418195493 = 53^5 %e A340696 6 149398068185838130176 = 10836^5, 149398068209479362001 = 110557^4 %Y A340696 The corresponding upper member of the pair is A340697. %Y A340696 Cf. A001597, A340700, A340701. %K A340696 nonn,hard,more %O A340696 1,1 %A A340696 _Hugo Pfoertner_, Jan 21 2021