A303886 - OEIS

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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, 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