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A184564 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock summing to less than 4 10
50, 336, 336, 2167, 5736, 2167, 14180, 91157, 91157, 14180, 92429, 1486258, 3436266, 1486258, 92429, 603249, 24057629, 134840527, 134840527, 24057629, 603249, 3935721, 390354307, 5228522011, 12900566348, 5228522011, 390354307, 3935721 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.........50............336...............2167..................14180

........336...........5736..............91157................1486258

.......2167..........91157............3436266..............134840527

......14180........1486258..........134840527............12900566348

......92429.......24057629.........5228522011..........1214657950233

.....603249......390354307.......203570564774........115000791536877

....3935721.....6329171799......7915660174974......10868641315040295

...25680486...102644935902....307926979784837....1027803541995894568

..167558680..1664547601646..11976979258313503...97176104485641628222

.1093290051.26993866274311.465872448754593695.9188347231740579769607

LINKS

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

EXAMPLE

Some solutions for 4X3

..0..2..2....1..2..1....2..0..1....2..2..2....1..1..0....0..1..2....0..1..0

..0..2..0....0..2..2....0..2..1....1..2..0....2..2..2....2..1..1....2..1..2

..2..2..1....2..2..0....2..0..2....2..0..2....0..2..0....2..0..2....1..2..1

..1..1..2....0..1..2....1..1..2....2..2..1....1..2..2....0..2..1....2..1..2

CROSSREFS

Sequence in context: A221572 A124809 A261803 * A184556 A334697 A280548

Adjacent sequences:  A184561 A184562 A184563 * A184565 A184566 A184567

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 17 2011

STATUS

approved

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Last modified May 28 14:47 EDT 2020. Contains 334684 sequences. (Running on oeis4.)