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 A064635 #5 Jul 19 2023 00:17:45 %S A064635 40,70,82,100,124,130,148,160,166,190,208,214,220,226,250,280,292,304, %T A064635 310,328,334,340,346,370,376,382,400,412,418,430,442,460,478,490,502, %U A064635 520,532,538,544,550,556,580,586,610,616,628,634,640,670,676,694,700 %N A064635 Even numbers > 6 not appearing in A064466. a(n) = A064466(A064634(n)) + 2 for n > 0. %Y A064635 Cf. A064466, A064634. %K A064635 nonn %O A064635 1,1 %A A064635 _Reinhard Zumkeller_, Oct 02 2001