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A210107 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having one or three distinct values, and new values 0..2 introduced in row major order 9
7, 30, 30, 135, 225, 135, 614, 1690, 1690, 614, 2799, 12725, 20687, 12725, 2799, 12766, 95830, 254314, 254314, 95830, 12766, 58231, 721705, 3125615, 5115121, 3125615, 721705, 58231, 265622, 5435250, 38420586, 102841182, 102841182, 38420586 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

......7.......30........135..........614............2799.............12766

.....30......225.......1690........12725...........95830............721705

....135.....1690......20687.......254314.........3125615..........38420586

....614....12725.....254314......5115121.......102841182........2068413037

...2799....95830....3125615....102841182......3382058727......111283430198

..12766...721705...38420586...2068413037....111283430198.....5991606341393

..58231..5435250..472285295..41604910322...3662188386511...322655579663298

.265622.40933565.5805666474.836912242697.120530162560270.17377924547360597

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..220

EXAMPLE

Some solutions for n=4 k=3

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

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

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

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

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

CROSSREFS

Sequence in context: A157422 A061644 A053621 * A266604 A018831 A063128

Adjacent sequences:  A210104 A210105 A210106 * A210108 A210109 A210110

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 17 2012

STATUS

approved

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Last modified May 19 08:25 EDT 2019. Contains 323389 sequences. (Running on oeis4.)