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 A195741 #4 Sep 22 2011 22:04:58 %S A195741 0,0,1,6,17,59,195,703,2499,9188,33890,126758,476269,1802311,6849776, %T A195741 26152417,100203193 %N A195741 Erroneous version of A006758. %D A195741 W. F. Lunnon, Counting multidimensional polyominoes. Computer Journal 18 (1975), no. 4, pp. 366-367. %D A195741 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %K A195741 dead %O A195741 1,4