A208501 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 1 1 vertically

2, 4, 4, 6, 16, 6, 10, 36, 36, 9, 16, 100, 60, 81, 13, 26, 256, 144, 126, 169, 19, 42, 676, 324, 324, 234, 361, 28, 68, 1764, 756, 828, 650, 456, 784, 41, 110, 4624, 1728, 2124, 1794, 1406, 896, 1681, 60, 178, 12100, 3996, 5436, 4992, 4104, 3024, 1722, 3600, 88

Offset

1,1

Comments

Table starts

..2....4....6...10....16....26.....42......68.....110......178......288

..4...16...36..100...256...676...1764....4624...12100....31684....82944

..6...36...60..144...324...756...1728....3996....9180....21168....48708

..9...81..126..324...828..2124...5436...13932...35676....91404...234108

.13..169..234..650..1794..4992..13806...38376..106236...295074...817362

.19..361..456.1406..4104.12654..37430..114494..341012..1037552..3103650

.28..784..896.3024..9912.33488.111328..374416.1249472..4192384.14013664

.41.1681.1722.6150.21976.79376.286754.1037300.3752320.13577396.49125954

Links

R. H. Hardin, Table of n, a(n) for n = 1..1253

Example

Some solutions for n=4 k=3
..1..0..0....0..1..1....0..1..0....1..0..0....0..1..0....1..1..0....1..0..1
..1..0..0....1..0..0....1..1..0....0..1..0....0..1..1....1..0..0....1..1..1
..0..1..0....1..1..0....1..0..1....1..1..0....1..0..1....0..1..1....0..1..0
..1..1..0....0..1..1....0..1..1....1..0..0....1..1..0....0..1..1....1..0..1

Crossrefs

Column 1 is A000930(n+3)

Column 2 is A207170

Row 1 is A006355(n+2)

Row 2 is A206981

Row 3 is A207590

Sequence in context: A208379 A207453 A208287 * A207589 A208069 A208840

Adjacent sequences: A208498 A208499 A208500 * A208502 A208503 A208504

Keyword

nonn,tabl

Author

R. H. Hardin Feb 27 2012

Status

approved