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A189648 Number of nX7 array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally 1

%I #5 Mar 31 2012 12:36:16

%S 21,24577,11047585,6156828073,3292827578005,1778231752192145,

%T 958681588788944613,517069529154777840681,278864582730126081862829,

%U 150399411952876520217908417,81114338143785708962035111845

%N Number of nX7 array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally

%C Column 7 of A189650

%H R. H. Hardin, <a href="/A189648/b189648.txt">Table of n, a(n) for n = 1..78</a>

%e Some solutions for 3X7

%e ..0..7..2..4..3..5.12....0..7.10..2..3..6..5....0..2..3..9..5..4..6

%e ..1..9.15.10.11..6.13....1..9.15.11.19..4.12....1.14.15.10.12.11.19

%e ..8.14.16.17.18.20.19....8.14.16.17.18.13.20....8..7.16.18.17.13.20

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 24 2011

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Last modified March 29 06:57 EDT 2024. Contains 371265 sequences. (Running on oeis4.)