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A207088 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 0 0 1 vertically 12
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 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
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
LINKS
EXAMPLE
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
CROSSREFS
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
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 15 2012
STATUS
approved

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Last modified July 15 11:01 EDT 2024. Contains 374332 sequences. (Running on oeis4.)