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 A099423 #26 Jan 07 2023 09:43:49 %S A099423 1,0,0,0,2,1,0,0,3,3,1,0,4,6,4,1,6,10,10,5,12,16,20,15,28,28,36,35,64, %T A099423 56,64,71,136,120,120,135,272,256,240,255,528,528,496,495,1024,1056, %U A099423 1024,991,2016,2080,2080,2015,4032,4096,4160,4095,8128,8128,8256,8255 %N A099423 Lean quaternary temporal logic [LQTL] cumulative column frequencies of LQTL logic in A094266. %C A099423 Appears to satisfy the recurrence: a(n) = 5*a(n-4) - 10*a(n-8) + 10*a(n-12) - 4*a(n-16). - _Chai Wah Wu_, May 25 2016 %C A099423 This is a table read by rows of length 4. Every row is formed from the corresponding row of the table A094266 according to the rule: a, b, c, d -> b, c, d, a-1. - _Andrey Zabolotskiy_, Jan 06 2023 %H A099423 Robert H. Barbour, <a href="https://www.complex-systems.com/abstracts/v17_i02_a01/">Two-dimensional Four Color Cellular Automaton: Surface Explorations</a>, Complex Systems, 17 (2007), 103-112. %Y A099423 Cf. A094266 (first differences row-wise). %K A099423 easy,nonn %O A099423 0,5 %A A099423 _Robert H Barbour_, Nov 17 2004; corrected Jun 10 2005