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 A097995 #11 Feb 18 2015 07:54:07 %S A097995 5,4,6,11,16,24,26,14,15,20,28,16,16,24,16,24,38,64,62,75,72,60,68,62, %T A097995 106,90,106,90,82,106,93,114,120,94,136,152,174,202,221,252,216,232, %U A097995 246,270,320,312,358,372,360,384,364,486,414,460,592,568,618,640,712,645 %N A097995 Cell populations in the development of the 1 X 5 cell pattern (I-pentomino) with the 2D cellular automaton rule "Seeds" (/2). %H A097995 Eric M. Schmidt, <a href="/A097995/b097995.txt">Table of n, a(n) for n = 0..1000</a> %H A097995 Eric M. Schmidt, <a href="/A097995/a097995.cpp.txt">C++ code to compute this sequence</a> %H A097995 Mirek Wojtowicz, <a href="http://www.mirekw.com/ca/">Information on many 2D cellular automata</a> %H A097995 <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a> %e A097995 a(0) = 5 because the 1 X 5 row contains 5 cells. a(1) = 4 because 4 cells are neighbors of exactly 2 of the original 5 cells. a(2) = 6 because 6 cells are neighbors of exactly 2 of the previous 4 cells. %Y A097995 Cf. A097981, A097996. %K A097995 nonn %O A097995 0,1 %A A097995 _Oliver Pechenik_, Sep 08 2004 %E A097995 Offset changed by _Eric M. Schmidt_, Mar 10 2013