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 A165763 #4 Jul 14 2012 11:32:31 %S A165763 1,2,3,4,5,6,7,9,10,12,13,18,21,22,27,33,35,39,40,43,46,51,59,63,70, %T A165763 74,76 %N A165763 Records in A165633. %C A165763 A165632(A165761(n))=A165762(n) are areas for which there are more tatami-free rooms than for any smaller size, this sequence gives that number of tatami-free rooms. %H A165763 Project Euler, <a href="http://projecteuler.net/index.php?section=problems&id=256">Problem 256: Tatami-Free Rooms</a>, Sept. 2009. %F A165763 A165763(n)=A165633(A165761(n)) %K A165763 nonn %O A165763 1,2 %A A165763 _M. F. Hasler_, Sep 26 2009