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 A080410 #9 Oct 04 2012 10:28:42 %S A080410 0,1,3,8,23,72,279,1236,6313,36133,230119,1611138,12308693,101865629, %T A080410 907900133,8669791288,88309821406,955736037556,10951928988000, %U A080410 132472073263683,1686686835102650,22549341913109430,315817852408881670 %N A080410 Boustrophedon transform of the continued fraction of the Euler-Mascheroni constant, gamma (A001620). %H A080410 J. Millar, N. J. A. Sloane and N. E. Young, A new operation on sequences: the Boustrophedon transform, J.Combin. Theory, 17A 44-54 1996 (<a href="http://neilsloane.com/doc/bous.txt">Abstract</a>, <a href="http://neilsloane.com/doc/bous.pdf">pdf</a>, <a href="http://neilsloane.com/doc/bous.ps">ps</a>). %H A080410 N. J. A. Sloane, <a href="/transforms.txt">Transforms</a> %H A080410 <a href="/index/Bo#boustrophedon">Index entries for sequences related to boustrophedon transform</a> %F A080410 a(n) appears to be asymptotic to C*n!*(2/Pi)^n where C=5.79838940503783299259552225238077705314049166104773668246015... which almost satisfies the polynomial equation 94487-16249C-8C^2=0 - _Benoit Cloitre_ and Mark Hudson (mrmarkhudson(AT)hotmail.com) %e A080410 We simply apply the Boustrophedon transform to [0,1,1,2,1,2,1,4,3,13,5,1,1,8,1,2,4,1,1,40,...] (A002852) %Y A080410 Cf. A001620, A002852, A080406-A080409. %K A080410 nonn,easy %O A080410 0,3 %A A080410 Mark Hudson (mrmarkhudson(AT)hotmail.com), Feb 18 2003