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A208698 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 1 0 and 1 0 1 vertically 9
2, 4, 4, 6, 16, 6, 9, 36, 36, 10, 14, 81, 98, 100, 16, 22, 196, 271, 358, 256, 26, 35, 484, 844, 1309, 1152, 676, 42, 56, 1225, 2706, 5524, 5371, 3910, 1764, 68, 90, 3136, 8977, 24086, 30160, 23637, 12994, 4624, 110, 145, 8100, 30168, 109599, 177488, 177872 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

..2....4.....6......9......14.......22.........35..........56...........90

..4...16....36.....81.....196......484.......1225........3136.........8100

..6...36....98....271.....844.....2706.......8977.......30168.......102384

.10..100...358...1309....5524....24086.....109599......506870......2376964

.16..256..1152...5371...30160...177488....1103081.....6990922.....45002090

.26..676..3910..23637..177872..1415508...12014735...104356568....923279444

.42.1764.12994.101069.1016258.10934750..126827983..1510509752..18362140414

.68.4624.43596.438103.5893862.85697362.1356513169.22125222702.369223577680

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..418

EXAMPLE

Some solutions for n=4 k=3

..0..1..0....0..0..0....1..0..1....0..0..0....1..1..0....1..1..1....0..0..0

..0..0..0....0..0..0....0..0..0....0..1..1....0..0..0....1..1..1....0..0..0

..1..0..1....1..0..1....0..0..0....0..1..1....0..0..0....0..1..0....1..1..0

..1..0..1....1..0..1....0..1..1....0..1..0....0..1..1....0..1..0....1..1..0

CROSSREFS

Column 1 is A006355(n+2)

Column 2 is A206981

Column 3 is A207462

Column 4 is A207914

Row 1 is A001611(n+2)

Row 2 is A207436

Row 3 is A207939

Sequence in context: A207467 A207918 A207519 * A207928 A207858 A208379

Adjacent sequences:  A208695 A208696 A208697 * A208699 A208700 A208701

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 01 2012

STATUS

approved

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Last modified December 5 23:38 EST 2021. Contains 349558 sequences. (Running on oeis4.)