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 A292339 #7 Aug 26 2021 08:22:50 %S A292339 1,3,5,15,183,355,505,915,1065,1515,12165,35855,64965,92415,107565, %T A292339 134139,201995,605985,670695,742065,863715,1228665,1674633,1675365, %U A292339 2269515,6561465,8373165,9074865,13772865,16521423,20401495,24197155,25709455,29234715,36965085,47619345,52686615,61204485,67740195,70694445,72591465 %N A292339 Numbers k such that k^2 divides 14^k + 1. %H A292339 Max Alekseyev, <a href="/A292339/b292339.txt">Table of n, a(n) for n = 1..92</a> %Y A292339 Subsequence of A015965. %Y A292339 Cf. A128394, A177814. %K A292339 nonn %O A292339 1,2 %A A292339 _Max Alekseyev_, Sep 16 2017