A186553 T(n,k)=1/8192 the number of (n+2)X(k+2) 0..3 arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace.

0, 290, 290, 2972, 19016, 2972, 168200, 1279862, 1279862, 168200, 3090668, 88662978, 177942264, 88662978, 3090668, 111188198, 6215002266, 31976088817, 31976088817, 6215002266, 111188198, 2585394080, 435599518160, 5253540132125

Offset: 1

Author

R. H. Hardin Feb 23 2011

Keywords

• nonn
• tabl

Comments

Table starts

...........0..............290.................2972................168200

.........290............19016..............1279862..............88662978

........2972..........1279862............177942264...........31976088817

......168200.........88662978..........31976088817........13544245035035

.....3090668.......6215002266........5253540132125......5541254050323697

...111188198.....435599518160......891778365437358...2292090739550640497

..2585394080...30577245619492...149628929202973235.945658119457845662613

.78931270418.2145961447892386.25212444270769802733

Examples

			Some solutions for 5X4
..0..2..0..0....0..2..0..0....2..2..0..0....0..2..0..0....0..2..0..0
..0..2..0..0....2..0..0..0....0..0..0..0....2..2..0..0....0..0..0..0
..3..2..0..0....1..0..2..0....1..0..0..0....3..3..0..0....2..2..2..0
..0..2..0..0....0..1..1..1....0..2..3..3....0..0..0..2....0..0..1..2
..0..0..0..3....2..2..1..2....2..3..0..0....2..2..2..1....0..1..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..59