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 A181210 #5 Jul 22 2025 08:35:36 %S A181210 64,441,9025,104976,1630729,21836929,315701824,4388400025,62249751001, %T A181210 873880953856,12333757683025,173597094140625,2446840043215936, %U A181210 34462915406893801,485580777431805169,6840488501157755536 %N A181210 Number of nX6 binary matrices with no two 1's adjacent diagonally or antidiagonally. %C A181210 Column 6 of A181212 %H A181210 R. H. Hardin, <a href="/A181210/b181210.txt">Table of n, a(n) for n=1..100</a> %F A181210 Empirical: a(n)=15*a(n-1)+52*a(n-2)-1045*a(n-3)+803*a(n-4)+17330*a(n-5)-30225*a(n-6)-98253*a(n-7)+228176*a(n-8)+160607*a(n-9)-559589*a(n-10)+6282*a(n-11)+499824*a(n-12)-154008*a(n-13)-117936*a(n-14)+46656*a(n-15) %K A181210 nonn %O A181210 1,1 %A A181210 _R. H. Hardin_ Oct 10 2010