A234425 - OEIS

A234425

Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 14 and no adjacent elements equal

%I #5 Aug 11 2014 22:46:07

%S 4516,89844,1729584,37628800,828368064,18660740184,422356863016,

%T 9600619446288,218501534996336,4977092897433108,113402524526971324,

%U 2584308275943921480,58897151487106590856,1342331770746402322732

%N Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 14 and no adjacent elements equal

%C Column 2 of A234428

%H R. H. Hardin, <a href="/A234425/b234425.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A234425/a234425.txt">Empirical recurrence of order 68</a>

%F Empirical recurrence of order 68 (see link above)

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 25 2013