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 A332087 #23 Oct 05 2020 01:06:48 %S A332087 3,33,333,3333,33433,334433,3344433,33433433,334444433,3344444433, %T A332087 33434443433,334445544433,3344455544433,33434000043433, %U A332087 334444444444433,3344444334444433,33434400000443433,334445433334544433,3344454322234544433,33434050022005043433,3344444433333344444433 %N A332087 Diagonals of cellular automata with 4 conditions and 6 possible values. %C A332087 The automata starts with 2 entries on each axis of value 3. %C A332087 Defined value(u,v) for any u,v natural the value of each cell of the automata. %C A332087 The axis(u,0),(u,-1) and (0,v),(-1,v) are value 3. %C A332087 Matrix (with entries): %C A332087 33333333333333 %C A332087 33333333333333 %C A332087 33444444444444 ... %C A332087 33443443443443 %C A332087 33434444444444 %C A332087 33444455044444 %C A332087 33444550440440 %C A332087 33434504303303 %C A332087 33444043032032 %C A332087 33443440322322 %C A332087 ... ... %C A332087 Diagonals: %C A332087 4 %C A332087 44 %C A332087 444 %C A332087 4334 %C A332087 44444 %C A332087 444444 %C A332087 4344434 %C A332087 44455444 %C A332087 444555444 %C A332087 4340000434 %C A332087 44444444444 %C A332087 444443344444 %C A332087 4344000004434 %C A332087 44454333345444 %C A332087 444543222345444 %C A332087 4340500220050434 %C A332087 44444433333444444 %C A332087 ... %C A332087 The stable parts around the axis are built with the matrix: %C A332087 33434 %C A332087 30444 %C A332087 44134 %C A332087 34314 %C A332087 44440 %C A332087 until approximately at a(300), when it disappears, and form a more chaotic structure that covers all the area of (u+175,v+175). %H A332087 Mario Cortés, <a href="/A332087/a332087.pdf">VISUAL REPRESENTATION WITH COLORS</a> %F A332087 value(v,u)= (In order of priority) %F A332087 if( (v,u-1)+(v-1,u)+(v-1,u-1)+(v,u-2)+(v-2,u)-(v-1,u-2)-(v-2,u-1) )>10;0 %F A332087 if( (v,u-1)+(v-1,u)+(v-1,u-1)-(v,u-2)-(v-2,u) )=5;3 %F A332087 if( (v,u-1)+(v-1,u)+(v-1,u-1)+(v-1,u-2)+(v-2,u-1)-(v-2,u-2) )=3;2 %F A332087 if( (v-1,u-2)+(v-2,u-1)+(v-2,u-2)+(v-1,u-1)-(v,u-1)-(v-1,u) )=1;1 %F A332087 if nothing= floor(((v,u-1)+(v-1,u)+(v-1,u-1)+(v,u-2)+(v-2,u)-(v-1,u-2)-(v-2,u-1))/7 +1) %e A332087 value(1,1) = floor(((3)+(3)+(3)+(3)+(3)+(3)+(3))/7 +1) = 4, %e A332087 value(1,2) = floor(((4)+(3)+(3)+(3)+(3)+(3)+(3))/7 +1) = 4, %e A332087 value(2,1) = floor(((3)+(4)+(3)+(3)+(3)+(3)+(3))/7 +1) = 4, %e A332087 ... %Y A332087 Cf. A006943. %K A332087 nonn %O A332087 1,1 %A A332087 _Mario Cortés_, Aug 22 2020