|
%I #5 Mar 31 2012 12:35:55
%S 2601,43163,746017,14219749,272110811,5344196941,105022040225,
%T 2080498882227,41211666924625,818324217080925,16247715840561235,
%U 322838617011302501,6414430376916521533,127476935064286493051
%N Number of (n+1)X4 0..2 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one
%C Column 3 of A183971
%H R. H. Hardin, <a href="/A183965/b183965.txt">Table of n, a(n) for n = 1..200</a>
%e Some solutions for 3X4
%e ..1..0..0..1....0..1..1..0....2..0..2..0....0..1..0..0....1..1..1..2
%e ..0..2..2..2....1..0..0..1....1..1..2..2....0..1..1..1....2..2..2..1
%e ..1..1..0..0....0..1..0..1....1..1..1..1....0..2..0..1....0..1..1..1
%e ...
%e ...3..4..5.......2..2..2.......4..5..6.......2..3..2.......6..6..6...
%e ...4..5..4.......2..1..2.......4..5..6.......3..4..3.......5..6..5...
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 08 2011
| 