A223071 T(n,k)=Number of nXk 0..3 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope.

4, 16, 16, 64, 150, 64, 256, 1080, 1080, 256, 1024, 6627, 38512, 6627, 1024, 4096, 36552, 899390, 899390, 36552, 4096, 16384, 187000, 22520656, 59844888, 22520656, 187000, 16384, 65536, 905440, 462313688, 4842450790, 4842450790, 462313688

Offset: 1

Author

R. H. Hardin Mar 14 2013

Keywords

• nonn
• tabl

Comments

Table starts

......4......16.........64..........256..........1024.........4096

.....16.....150.......1080.........6627.........36552.......187000

.....64....1080......38512.......899390......22520656....462313688

....256....6627.....899390.....59844888....4842450790.268351320214

...1024...36552...22520656...4842450790.1962060592992

...4096..187000..462313688.268351320214

..16384..905440.9567328752

..65536.4206453

.262144

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..49

Crossrefs

Column 1 is A000302