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 A326991 #15 Aug 13 2019 22:58:23 %S A326991 1,2,3,2,3,48,4,34,2,3,3,104,41,97,131,77,133,167,95,80,82,43,90,47, %T A326991 33,33,254,8,284,432,6,47,107,125,265,341,385,8,384,55,31,130,350,56, %U A326991 200,41,295,217,69,327,15,103,210,107,73,17,2,3,3,552,83,203,131,221,73,85,437,574,347,293,113,481,636 %N A326991 First quadrisection of A133058. %C A326991 After the initial chaos, starting with n = 160 we have the spoke 1282, 1290, 1298, 1306, ... %F A326991 a(n) = A133058(4n) = A133058(A008586(n)). %F A326991 For n >= 160; a(n) = 8*n + 2. %Y A326991 Cf. A008586, A133058, A326992, A326993, A326994. %K A326991 nonn %O A326991 0,2 %A A326991 _Omar E. Pol_, Aug 11 2019