A183836 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with each element of every 2X2 subblock being the sum mod 3 of two others

31, 127, 127, 523, 823, 523, 2215, 5323, 5323, 2215, 9307, 35755, 53589, 35755, 9307, 39367, 237671, 568635, 568635, 237671, 39367, 165979, 1598975, 5935955, 9622587, 5935955, 1598975, 165979, 701191, 10698847, 63219545, 159806751, 159806751

Offset

1,1

Comments

Table starts

.......31........127..........523............2215..............9307

......127........823.........5323...........35755............237671

......523.......5323........53589..........568635...........5935955

.....2215......35755.......568635.........9622587.........159806751

.....9307.....237671......5935955.......159806751........4200572147

....39367....1598975.....63219545......2720843743......113949885751

...165979...10698847....666851127.....45786104591.....3044918926037

...701191...71897239...7093125423....778858637315....82530377465595

..2959003..482007015..75083743089..13166815842739..2218534760391843

.12494791.3236765167.797712241059.223691739484723.60039731283580691

Links

R. H. Hardin, Table of n, a(n) for n = 1..180

Example

Some solutions for 4X3
..0..2..0....0..2..0....2..1..0....2..1..2....2..2..2....0..2..0....0..2..0
..1..2..1....1..1..1....0..2..1....2..0..2....0..1..1....2..1..2....1..2..1
..2..1..0....0..2..2....1..1..0....1..1..2....1..2..0....1..0..2....1..2..1
..0..1..2....2..1..1....0..2..1....2..0..1....2..1..1....2..1..2....0..2..0

Crossrefs

Sequence in context: A153073 A042886 A042888 * A078656 A095322 A127578

Adjacent sequences: A183833 A183834 A183835 * A183837 A183838 A183839

Keyword

nonn,tabl

Author

R. H. Hardin Jan 07 2011

Status

approved