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 A375334 #5 Aug 12 2024 13:11:43 %S A375334 -1,268,2835,49316,20301007,349717731 %N A375334 a(n) is the smallest number which can be represented as the sum of 7 distinct positive n-th powers in exactly 4 ways, or -1 if no such number exists. %e A375334 a(6) = 349717731 = 2^6 + 6^6 + 7^6 + 17^6 + 20^6 + 22^6 + 23^6 %e A375334 = 2^6 + 8^6 + 10^6 + 11^6 + 16^6 + 21^6 + 25^6 %e A375334 = 5^6 + 8^6 + 10^6 + 11^6 + 14^6 + 23^6 + 24^6 %e A375334 = 5^6 + 8^6 + 13^6 + 14^6 + 15^6 + 16^6 + 26^6. %Y A375334 Cf. A046881, A342901, A374418, A374421, A374422, A374423, A374424, A374425, A375329, A375330, A375331, A375332, A375333. %K A375334 sign,hard,more %O A375334 1,2 %A A375334 _Ilya Gutkovskiy_, Aug 12 2024