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 A260967 #10 Aug 11 2015 12:14:26 %S A260967 1,2,7,292 %N A260967 Number of infinitesimal normal play partisan games born on or before day n. %C A260967 A game g is infinitesimal if -x < g < x for all positive numbers x, or equivalently if its left and right stops are both 0. %D A260967 Aaron N. Siegel, Combinatorial Game Theory, AMS Graduate Texts in Mathematics Vol 146 (2013), p. 158. %Y A260967 Cf. A065401 (all games), A260968 (all-small games), A260969 (reduced games). %K A260967 nonn,more %O A260967 0,2 %A A260967 _Christopher E. Thompson_, Aug 06 2015