A207088 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 0 0 1 vertically.

2, 4, 4, 7, 16, 7, 13, 49, 49, 12, 24, 169, 241, 144, 20, 44, 576, 1393, 1117, 400, 33, 81, 1936, 7915, 10621, 4891, 1089, 54, 149, 6561, 44065, 98824, 75221, 20953, 2916, 88, 274, 22201, 248525, 894720, 1128580, 518001, 88465, 7744, 143, 504, 75076, 1398065

Offset: 1

Author

R. H. Hardin Feb 15 2012

Keywords

• nonn
• tabl

Comments

Table starts

..2....4......7.......13.........24..........44............81.............149

..4...16.....49......169........576........1936..........6561...........22201

..7...49....241.....1393.......7915.......44065........248525.........1398065

.12..144...1117....10621......98824......894720.......8244759........75709453

.20..400...4891....75221....1128580....16421568.....243794389......3604761693

.33.1089..20953...518001...12462017...289951889....6897033117....163328551845

.54.2916..88465..3500117..134515416..4992838052..189659424011...7170730063393

.88.7744.370753.23428181.1435875920.84911938560.5142718466575.309962689144609

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..338

Crossrefs

Column 1 is A000071(n+3)

Column 2 is A188516

Row 1 is A000073(n+3)

Row 2 is A085697(n+1)