

A206091


Number of (n+1) X 6 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.


1



13608, 17976, 33792, 131904, 516912, 2156544, 8613504, 34039392, 142331904, 568491264, 2246599872, 9393905664, 37520423424, 148275591552, 619997773824, 2476347945984, 9786189042432, 40919853072384, 163438964434944
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OFFSET

1,1


COMMENTS

Column 5 of A206094.


LINKS

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


FORMULA

Empirical: a(n) = 66*a(n3) for n>8.


EXAMPLE

Some solutions for n=4:
..1..1..2..1..2..1....1..0..1..2..2..0....2..2..0..2..2..0....1..2..2..1..2..2
..1..0..1..1..2..2....1..0..0..1..2..2....2..0..2..2..0..1....2..1..2..2..0..2
..0..1..1..0..1..1....0..2..0..0..1..2....0..2..2..0..1..1....2..2..0..2..2..0
..1..1..2..1..1..0....0..0..1..0..0..1....2..2..0..1..1..2....1..2..2..0..2..2
..2..2..1..1..2..1....2..0..0..2..0..1....2..0..1..1..2..1....2..0..2..2..1..2


CROSSREFS

Sequence in context: A108418 A232447 A237893 * A218456 A224971 A185471
Adjacent sequences: A206088 A206089 A206090 * A206092 A206093 A206094


KEYWORD

nonn


AUTHOR

R. H. Hardin, Feb 03 2012


STATUS

approved



