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 A007864 #10 May 13 2013 11:08:00 %S A007864 1,2,4,7,11,19,30,49,76,118,180,276,411,614,908,1336,1944,2824,4067, %T A007864 5839,8326,11829,16719,23557,33019,46142,64226,89117,123198,169841, %U A007864 233373,319817,436982,595554,809503,1097714,1484805,2003938,2698410 %N A007864 Number of matrix bundles of codimension n (Euler transform of A001156). %D A007864 V. I. Arnold, Singularity Theory, Cambridge Univ. Press, 1981, p. 57. %H A007864 N. J. A. Sloane, <a href="/transforms.txt">Transforms</a> %K A007864 nonn %O A007864 1,2 %A A007864 _Peter J. Cameron_ %E A007864 Corrected and extended by _Vladeta Jovovic_, Sep 05 2002