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A303886 Number of nX6 0..1 arrays with every element unequal to 0, 2, 3 or 4 king-move adjacent elements, with upper left element zero. 1
1, 272, 256, 2130, 4964, 24985, 88901, 384168, 1517262, 6387363, 26128622, 109286469, 453167087, 1893484140, 7895422217, 33012465799, 138034364553, 577776514184, 2419883706139, 10139777334645, 42517613567822 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A303888.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A303888.

Sequence in context: A287232 A332978 A214012 * A305279 A005933 A112820

Adjacent sequences:  A303883 A303884 A303885 * A303887 A303888 A303889

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 02 2018

STATUS

approved

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Last modified August 10 16:03 EDT 2022. Contains 356039 sequences. (Running on oeis4.)