login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A317381 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1
32, 45, 270, 1580, 10732, 75405, 508181, 3446847, 23624322, 161229670, 1098816831, 7502653827, 51215288080, 349470796318, 2385134752139, 16279122880898, 111101831408560, 758256658747120, 5175081010159005, 35319539304845840 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A317383.

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

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

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

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

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

CROSSREFS

Cf. A317383.

Sequence in context: A316418 A304924 A306164 * A178311 A319914 A167527

Adjacent sequences:  A317378 A317379 A317380 * A317382 A317383 A317384

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 26 2018

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 28 04:43 EDT 2021. Contains 348313 sequences. (Running on oeis4.)