A207693 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 1 vertically.

2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 15, 81, 60, 81, 13, 25, 225, 100, 144, 169, 18, 40, 625, 240, 256, 312, 324, 25, 64, 1600, 576, 768, 576, 612, 625, 34, 104, 4096, 1296, 2304, 1872, 1156, 1250, 1156, 46, 169, 10816, 2916, 5856, 6084, 4216, 2500, 2516, 2116, 62, 273

Offset: 1

Author

R. H. Hardin Feb 19 2012

Keywords

• nonn
• tabl

Comments

Table starts

..2....4....6....9....15.....25.....40......64.....104......169.......273

..4...16...36...81...225....625...1600....4096...10816....28561.....74529

..6...36...60..100...240....576...1296....2916....6804....15876.....36288

..9...81..144..256...768...2304...5856...14884...42700...122500....320600

.13..169..312..576..1872...6084..18564...56644..177548...556516...1724752

.18..324..612.1156..4216..15376..50096..163216..578528..2050624...6804864

.25..625.1250.2500.10000..40000.145200..527076.2056032..8020224..29854944

.34.1156.2516.5476.24420.108900.453420.1887876.8263236.36168196.155101060

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..648

Crossrefs

Column 1 is A171861(n+1)

Column 2 is A207025

Column 3 is A207584

Row 1 is A006498(n+2)

Row 2 is A189145(n+2)