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A207088
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T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 0 0 1 vertically
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12
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2, 4, 4, 7, 16, 7, 13, 49, 49, 12, 24, 169, 241, 144, 20, 44, 576, 1393, 1117, 400, 33, 81, 1936, 7915, 10621, 4891, 1089, 54, 149, 6561, 44065, 98824, 75221, 20953, 2916, 88, 274, 22201, 248525, 894720, 1128580, 518001, 88465, 7744, 143, 504, 75076, 1398065
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OFFSET
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1,1
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COMMENTS
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Table starts
..2....4......7.......13.........24..........44............81.............149
..4...16.....49......169........576........1936..........6561...........22201
..7...49....241.....1393.......7915.......44065........248525.........1398065
.12..144...1117....10621......98824......894720.......8244759........75709453
.20..400...4891....75221....1128580....16421568.....243794389......3604761693
.33.1089..20953...518001...12462017...289951889....6897033117....163328551845
.54.2916..88465..3500117..134515416..4992838052..189659424011...7170730063393
.88.7744.370753.23428181.1435875920.84911938560.5142718466575.309962689144609
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..338
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EXAMPLE
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Some solutions for n=4 k=3
..0..1..1....0..1..0....1..1..1....1..0..0....1..1..0....0..0..1....1..0..0
..0..1..1....1..0..0....1..1..1....0..0..1....0..0..1....1..0..0....1..0..1
..0..1..1....1..0..0....0..1..0....1..0..1....1..1..1....0..0..1....1..0..1
..0..1..1....1..0..0....0..1..0....0..0..1....1..0..0....0..0..1....1..0..1
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CROSSREFS
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Column 1 is A000071(n+3)
Column 2 is A188516
Row 1 is A000073(n+3)
Row 2 is A085697(n+1)
Sequence in context: A188774 A206936 A206871 * A207182 A206994 A181224
Adjacent sequences: A207085 A207086 A207087 * A207089 A207090 A207091
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KEYWORD
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nonn,tabl
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AUTHOR
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R. H. Hardin Feb 15 2012
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STATUS
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approved
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