A206255 T(n,k) = Number of (n+1) X (k+1) 0..3 arrays with every 2 X 2 subblock having zero permanent.

49, 361, 361, 1600, 8029, 1600, 9409, 99856, 99856, 9409, 47089, 1718209, 1364224, 1718209, 47089, 258064, 26512201, 49336576, 49336576, 26512201, 258064, 1343281, 434613664, 944701696, 4556324929, 944701696, 434613664, 1343281, 7198489

Offset: 1

Author

R. H. Hardin, Feb 05 2012

Keywords

• nonn
• tabl

Comments

Table starts

......49..........361...........1600..............9409................47089

.....361.........8029..........99856...........1718209.............26512201

....1600........99856........1364224..........49336576............944701696

....9409......1718209.......49336576........4556324929.........226637884225

...47089.....26512201......944701696......226637884225.......14139111560401

..258064....434613664....27285753856....16533087493120.....2261195747329024

.1343281...6990799321...603269103616..1006239668280961...186370092021300625

.7198489.113636628469.15860529270784.68438717405988481.24455901146017548025

Examples

			Some solutions for n=4, k=3
..2..0..3..3....0..0..1..1....0..3..3..0....0..0..0..0....0..2..0..3
..0..0..0..0....3..0..0..0....0..0..0..0....3..0..1..1....0..0..0..1
..2..1..1..0....3..0..1..1....1..0..1..0....2..0..0..0....1..0..0..1
..0..0..0..0....1..0..0..0....1..0..0..0....3..0..2..0....0..0..0..3
..2..1..1..0....3..0..0..2....2..0..2..3....2..0..3..0....1..0..0..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..611

Crossrefs

Cf. A006130.

Formula

Column 1 is A006130(n+2)^2.