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A209713 1/4 the number of (n+1)X6 0..3 arrays with every 2X2 subblock having distinct clockwise edge differences 1
63280, 9278940, 1293734407, 183988612894, 26024000948100, 3690894707522275, 522757733883587522, 74095286689410395475, 10497954243766841570370, 1487704397822521872822441, 210801722411081467285442780 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A209716

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A322689 A234080 A232264 * A230681 A209793 A115748

Adjacent sequences:  A209710 A209711 A209712 * A209714 A209715 A209716

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 11 2012

STATUS

approved

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Last modified August 8 09:40 EDT 2022. Contains 356009 sequences. (Running on oeis4.)