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A207703 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically 10
2, 4, 4, 6, 16, 6, 9, 36, 36, 8, 15, 81, 102, 64, 10, 25, 225, 289, 216, 100, 12, 40, 625, 1071, 729, 390, 144, 14, 64, 1600, 3969, 3321, 1521, 636, 196, 16, 104, 4096, 13230, 15129, 8151, 2809, 966, 256, 18, 169, 10816, 44100, 61254, 43681, 17225, 4761, 1392 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

..2...4....6....9....15.....25......40.......64.......104.......169........273

..4..16...36...81...225....625....1600.....4096.....10816.....28561......74529

..6..36..102..289..1071...3969...13230....44100....153090....531441....1815939

..8..64..216..729..3321..15129...61254...248004...1050282...4447881...18510693

.10.100..390.1521..8151..43681..206910...980100...4863870..24137569..117661437

.12.144..636.2809.17225.105625..571350..3090564..17518470..99301225..552967815

.14.196..966.4761.32775.225625.1369900..8317456..52895444.336392281.2102483853

.16.256.1392.7569.57681.439569.2956980.19891600.140048460.986022801.6826106385

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..650

EXAMPLE

Some solutions for n=4 k=3

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

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

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

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

CROSSREFS

Column 2 is A016742

Column 3 is A086113

Column 4 is A207399

Row 1 is A006498(n+2)

Row 2 is A189145(n+2)

Sequence in context: A207068 A209650 A207599 * A267719 A207752 A207514

Adjacent sequences:  A207700 A207701 A207702 * A207704 A207705 A207706

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Feb 19 2012

STATUS

approved

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Last modified September 20 23:04 EDT 2021. Contains 347596 sequences. (Running on oeis4.)