A316310 - OEIS

A316310

Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

21, 127, 168, 1046, 4583, 17487, 96175, 534083, 2689151, 15357780, 89959730, 517714307, 3063955854, 18343096898, 109721387508, 660612374692, 3991562407488, 24145509389500, 146334159352398, 887846840631706

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OFFSET

1,1

COMMENTS

Column 7 of A316311.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316311.

Sequence in context: A316551 A304543 A306128 * A317265 A213565 A041852

Adjacent sequences: A316307 A316308 A316309 * A316311 A316312 A316313

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 29 2018

STATUS

approved