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A205983 Number of (n+1)X6 0..2 arrays with every 2X3 or 3X2 subblock having exactly two clockwise edge increases 1
60432, 140802, 408411, 1814784, 9653376, 50843904, 279003648, 1502833632, 7930959552, 43524639072, 234442046592, 1237229690112, 6789843695232, 36572959268352, 193007831657472, 1059215616456192, 5705381645862912 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A205986

LINKS

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

FORMULA

Empirical: a(n) = 156*a(n-3) for n>10

EXAMPLE

Some solutions for n=4

..2..1..0..1..0..2....2..2..2..0..2..0....2..0..1..2..0..0....2..0..1..2..0..0

..0..1..1..2..0..0....2..1..0..0..1..2....0..0..1..1..2..0....0..0..1..1..2..0

..1..2..1..1..2..0....1..0..0..1..2..2....1..1..2..1..1..0....1..1..2..1..1..2

..1..1..2..1..1..2....0..0..1..2..2..1....2..1..1..2..1..1....2..1..1..2..1..1

..2..1..1..0..1..2....0..1..2..2..0..2....0..2..1..1..2..0....0..2..1..1..0..0

CROSSREFS

Sequence in context: A287047 A075671 A186556 * A218488 A257754 A234767

Adjacent sequences:  A205980 A205981 A205982 * A205984 A205985 A205986

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 02 2012

STATUS

approved

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Last modified March 29 17:23 EDT 2020. Contains 333116 sequences. (Running on oeis4.)