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A233712 Number of (n+1)X(3+1) 0..4 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 14 1

%I #5 Aug 11 2014 22:45:56

%S 1992,16004,136960,1291820,12203480,117736088,1132387344,10952782784,

%T 105752474712,1022915229556,9886172796368,95612706711092,

%U 924330584621384,8938735196752324,86423147934249600,835715879283995312

%N Number of (n+1)X(3+1) 0..4 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 14

%C Column 3 of A233717

%H R. H. Hardin, <a href="/A233712/b233712.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A233712/a233712.txt">Empirical recurrence of order 75</a>

%F Empirical recurrence of order 75 (see link above)

%e Some solutions for n=3

%e ..1..4..1..4....1..0..1..0....3..1..1..1....1..4..4..4....3..2..3..0

%e ..1..3..1..2....1..3..1..3....3..0..3..0....1..3..1..2....0..0..3..1

%e ..4..4..1..4....1..0..0..3....1..1..3..1....1..0..1..4....3..2..3..4

%e ..1..2..1..3....3..3..2..3....2..4..4..1....1..3..1..3....3..0..3..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 15 2013

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Last modified March 28 07:33 EDT 2024. Contains 371235 sequences. (Running on oeis4.)