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A206195 Number of (n+1)X7 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two 1
4596072, 1966171084, 848327900384, 365468694266436, 157233431036489148, 67595116900832029672, 29048689240586916141284, 12481384538302527859923440, 5362463708438175275453119020, 2303828616153300698234374000660 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A206197

LINKS

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

EXAMPLE

Some solutions for n=4

..2..0..0..1..0..3..2....3..1..3..2..0..2..2....2..2..0..1..2..0..3

..3..2..1..2..1..0..3....3..2..0..3..1..0..3....0..3..1..0..2..1..0

..0..3..2..0..2..1..0....0..3..2..1..2..1..0....1..0..2..1..3..2..1

..1..0..3..1..3..2..1....3..0..3..2..3..2..1....3..1..3..2..0..3..2

..3..1..0..2..1..3..2....3..1..0..3..1..0..2....2..1..0..3..1..0..3

CROSSREFS

Sequence in context: A234806 A152964 A129931 * A320210 A320219 A265448

Adjacent sequences: A206192 A206193 A206194 * A206196 A206197 A206198

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 04 2012

STATUS

approved

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Last modified February 9 04:00 EST 2023. Contains 360153 sequences. (Running on oeis4.)