A233976 - OEIS

A233976

Number of (n+1)X(3+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 13

%I #4 Dec 18 2013 07:38:59

%S 7920,59440,455832,4097024,37974312,389559628,4063204904,45100814568,

%T 501030842392,5792456074928,66350084305560,782242974657312,

%U 9089302555320488,108144697929807660,1264930350635066256

%N Number of (n+1)X(3+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 13

%C Column 3 of A233980

%H R. H. Hardin, <a href="/A233976/b233976.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 18 2013