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 A347375 #13 Jan 09 2023 07:55:50 %S A347375 1,15,25,75,275,725,2175,3725,9025,27075,79025,215905,390625,1079525, %T A347375 2256125,5397625,11328125,33984375,58203125,174609375 %N A347375 The position of the first occurrence of n in A347249. %C A347375 These appear to also be the positions of records in A347249. %C A347375 Question: Are all terms after the initial one multiples of five? %F A347375 For all n >= 0, A347249(a(n)) = n. %Y A347375 Cf. A331410, A336361, A347249, A347374. %K A347375 nonn,more %O A347375 0,2 %A A347375 _Antti Karttunen_, Aug 31 2021