A316382 Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

8, 4184, 57453, 1755475, 47958446, 1244767536, 33482107028, 901574650029, 24039453398630, 644896976222053, 17279478047167940, 462737123593688897, 12398931672108492980, 332171268528642261600, 8898699258491354145863

Offset

1,1

Comments

Column 7 of A316383.

Links

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

Example

Some solutions for n=5
..0..1..1..1..1..1..1. .0..1..0..1..0..1..0. .0..1..1..0..0..0..1
..0..0..1..0..0..0..0. .0..0..1..0..1..1..0. .0..0..0..0..0..1..0
..0..0..0..1..1..1..1. .0..0..0..0..1..1..1. .0..0..0..1..1..0..0
..0..1..0..1..1..1..1. .0..1..1..0..0..1..0. .0..1..1..1..1..1..0
..0..0..0..1..1..0..0. .0..0..1..0..1..0..0. .0..0..1..0..0..1..1

Crossrefs

Cf. A316383.

Sequence in context: A304900 A316582 A304596 * A306142 A317375 A100351

Adjacent sequences: A316379 A316380 A316381 * A316383 A316384 A316385

Keyword

nonn

Author

R. H. Hardin, Jun 30 2018

Status

approved