A206472 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having zero permanent.

25, 121, 121, 441, 1411, 441, 1849, 11025, 11025, 1849, 7225, 106891, 110889, 106891, 7225, 29241, 958441, 1896129, 1896129, 958441, 29241, 116281, 8963667, 23707161, 68352739, 23707161, 8963667, 116281, 466489, 82609921, 356190129, 1693734025

Offset: 1

Author

R. H. Hardin Feb 08 2012

Keywords

• nonn
• tabl

Comments

Table starts

.....25.......121.........441...........1849.............7225

....121......1411.......11025.........106891...........958441

....441.....11025......110889........1896129.........23707161

...1849....106891.....1896129.......68352739.......1693734025

...7225....958441....23707161.....1693734025......61244865529

..29241...8963667...356190129....52552339515....3420616959081

.116281..82609921..4803737481..1457044540561..144660587865049

.466489.767387611.69030731169.43214597865811.7310031634630729

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..684

Crossrefs

Column 1 is A139818(n+3)