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A189279 Number of nX8 array permutations with each element not moved or moved diagonally or antidiagonally by one 1

%I #5 Mar 31 2012 12:36:15

%S 1,1156,140625,39100009,8366395024,1949419118656,441979857682489,

%T 101143260268999524,23076937169939058561,5270856026569766627569,

%U 1203479485449751104976144,274821392418575218931980321

%N Number of nX8 array permutations with each element not moved or moved diagonally or antidiagonally by one

%C Column 8 of A189280

%H R. H. Hardin, <a href="/A189279/b189279.txt">Table of n, a(n) for n = 1..71</a>

%e Some solutions for 3X8

%e ..0..1..9.12..4..5.13..7....0..8..9..3..4.12.15..7....9..8..2..3.11..5..6..7

%e ..8.18.19..2..3..6.23.15....1..2.19.18..5.22.23..6....1..0.17..4.19.20.21.22

%e .16.17.11.10.20.21.22.14...16.17.11.10.20.21.13.14...16.10.18.12.13.14.15.23

%K nonn

%O 1,2

%A _R. H. Hardin_ Apr 19 2011

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Last modified October 1 22:38 EDT 2023. Contains 365828 sequences. (Running on oeis4.)