cp's OEIS Frontend

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.

A232596 Number of (7+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal.

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%I A232596 #7 Jul 23 2025 07:31:51
%S A232596 32,23034,2322,1718514,306022,144506106,41969054,12273587770,
%T A232596 4884387186,1043763774120,539685676660,88770099413126,56392403717222,
%U A232596 7550561153273170,5696222151995370,642331696103563914,560920693194450480
%N A232596 Number of (7+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal.
%C A232596 Row 7 of A232589
%H A232596 R. H. Hardin, <a href="/A232596/b232596.txt">Table of n, a(n) for n = 1..210</a>
%e A232596 Some solutions for n=4
%e A232596 ..0..1..0..1..0....0..1..0..1..0....0..1..0..1..0....0..1..0..1..0
%e A232596 ..2..1..2..1..2....2..1..2..1..2....2..1..2..1..2....2..1..2..1..2
%e A232596 ..0..1..0..1..2....0..1..2..1..0....2..1..0..1..2....0..1..0..1..2
%e A232596 ..2..1..0..1..0....2..1..0..1..2....0..1..2..1..2....2..1..0..1..2
%e A232596 ..0..1..2..1..0....2..1..2..1..0....0..1..0..1..2....2..1..2..1..0
%e A232596 ..0..1..0..1..2....2..1..0..1..0....2..1..0..1..0....2..1..2..1..0
%e A232596 ..0..1..2..1..0....2..1..2..1..0....0..1..2..1..0....0..1..2..1..2
%e A232596 ..2..1..0..1..2....2..1..0..1..2....0..1..2..1..0....2..1..0..1..0
%K A232596 nonn
%O A232596 1,1
%A A232596 _R. H. Hardin_, Nov 26 2013