A208042 - OEIS

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A208042

Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically

19, 361, 1995, 11025, 94605, 811801, 5866411, 42393121, 327288437, 2526771289, 19008214715, 142993641025, 1086798939915, 8260031196729, 62521114891599, 473229424222569, 3587920094200239, 27202811032966009, 206103852899096453

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Row 6 of A208039

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

CROSSREFS

Sequence in context: A207916 A208162 A207958 * A208031 A370148 A171293

Adjacent sequences: A208039 A208040 A208041 * A208043 A208044 A208045

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 22 2012

STATUS

approved