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A233721 Number of (n+1)X(4+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26 1

%I #4 Dec 15 2013 06:00:36

%S 68828,820524,10950676,170070448,2734167036,46522687660,796715658452,

%T 13995270446204,245408211398092,4358775191230524,77150745635099900,

%U 1375309537380981836,24439122021669087584,436122272157881688916

%N Number of (n+1)X(4+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26

%C Column 4 of A233724

%H R. H. Hardin, <a href="/A233721/b233721.txt">Table of n, a(n) for n = 1..109</a>

%e Some solutions for n=1

%e ..1..4..1..4..1....5..1..0..1..1....7..6..6..6..4....0..3..0..2..2

%e ..3..6..3..6..4....5..4..0..4..5....7..3..7..3..1....3..5..2..5..6

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 15 2013

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Last modified March 29 09:44 EDT 2024. Contains 371268 sequences. (Running on oeis4.)