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 A036992 #15 Jul 08 2025 21:58:54 %S A036992 6,9,14,17,22,25,26,28,30,33,35,37,38,41,46,49,54,57,58,60,62,65,67, %T A036992 69,70,73,78,81,86,89,90,92,94,97,99,101,102,105,106,108,110,113,114, %U A036992 116,118,120,121,122,124,126,129,131,133,134,135,137,139,141,142,145,147 %N A036992 Numbers not in A036990 nor A036991. %H A036992 Reinhard Zumkeller, <a href="/A036992/b036992.txt">Table of n, a(n) for n = 1..10000</a> %F A036992 a(n) ~ n. [_Charles R Greathouse IV_, Sep 21 2011] %o A036992 (Haskell) %o A036992 a036992 n = a036992_list !! (n-1) %o A036992 a036992_list = c a036990_list (tail a036991_list) [0..] where %o A036992 c us'@(u:us) vs'@(v:vs) (w:ws) %o A036992 | w == u = c us vs' ws %o A036992 | w == v = c us' vs ws %o A036992 | otherwise = w : c us' vs' ws %o A036992 -- _Reinhard Zumkeller_, Jul 31 2013 %Y A036992 Cf. A036988, A036990, A036991. %K A036992 nonn,easy,base %O A036992 1,1 %A A036992 _N. J. A. Sloane_ %E A036992 More terms from _Erich Friedman_.