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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
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
1,1
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
LINKS
EXAMPLE
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
CROSSREFS
Column 1 is A000302
Sequence in context: A207290 A223066 A339570 * A232431 A267974 A267997
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 14 2013
STATUS
approved