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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.

A185775 Number of (n+1)X6 0..2 arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.

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%I A185775 #6 Jul 22 2025 10:00:09
%S A185775 186624,14837270,1154712762,95851024672,7861640359954,641850855452998
%N A185775 Number of (n+1)X6 0..2 arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.
%C A185775 Column 5 of A185777
%e A185775 Some solutions for 3X6
%e A185775 ..0..0..1..2..0..0....0..0..1..2..1..2....0..0..2..2..0..0....0..0..1..2..2..2
%e A185775 ..0..1..2..0..0..1....0..1..2..2..1..0....0..0..1..0..2..1....0..0..0..1..2..2
%e A185775 ..0..1..2..0..0..1....0..1..1..1..0..2....0..1..0..0..0..2....0..1..1..1..0..1
%K A185775 nonn
%O A185775 1,1
%A A185775 _R. H. Hardin_ Feb 03 2011

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