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 A230182 #6 Jun 02 2025 08:42:16 %S A230182 33,4395,596973,82359177,11393567289,1576417829097,218117038953009, %T A230182 30179260908320577,4175684607609841059,577759089171442494555, %U A230182 79940320493798468104653,11060760378778721204329065 %N A230182 Number of nX6 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2-x(i,j). %C A230182 Column 6 of A230184 %H A230182 R. H. Hardin, <a href="/A230182/b230182.txt">Table of n, a(n) for n = 1..210</a> %F A230182 Empirical: a(n) = 164*a(n-1) -3726*a(n-2) +24960*a(n-3) -32835*a(n-4) +212869*a(n-5) -1517270*a(n-6) -564971*a(n-7) +2420745*a(n-8) +12807149*a(n-9) +23530684*a(n-10) +90386570*a(n-11) -74066965*a(n-12) -97063095*a(n-13) -55279853*a(n-14) -59066858*a(n-15) +30982951*a(n-16) +40315301*a(n-17) +6275528*a(n-18) +1117439*a(n-19) +188525*a(n-20) +77985*a(n-21) -4848*a(n-22) +256*a(n-23) for n>24 %e A230182 Some solutions for n=3 %e A230182 ..0..2..0..0..2..0....0..2..0..1..1..2....0..2..0..1..1..1....0..2..0..2..2..0 %e A230182 ..0..1..1..0..0..0....0..1..1..2..0..2....2..0..0..2..2..2....0..1..0..1..2..1 %e A230182 ..1..2..0..2..2..0....2..0..2..2..0..2....1..1..2..0..0..2....1..1..1..1..1..1 %K A230182 nonn %O A230182 1,1 %A A230182 _R. H. Hardin_, Oct 11 2013