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 A106531 #5 Jun 22 2022 12:04:36 %S A106531 1,2,3,5,10,24,26,39,65,130,210,408,442,1326,2210,2310,9240,11570, %T A106531 18690,36312,39338,118014,196690,308958,514930,538230,2152920,2695810, %U A106531 4354770,8460696,9165754,27497262,45828770,94232190,131328120,151794840 %N A106531 Record values in A106530. %C A106531 a(n) = A106530(A106532(n)). %Y A106531 Cf. A106530, A106532. %K A106531 nonn %O A106531 1,2 %A A106531 _Reinhard Zumkeller_, May 08 2005