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!)
A302320 Number of nX6 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
32, 360, 1528, 14022, 104932, 708572, 5542827, 41843808, 305929316, 2314491745, 17440443844, 130333059573, 980106473079, 7374359116006, 55398416906338, 416423087231831, 3131657192036482, 23549977524019022, 177066204746039879 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A302322.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A302322.

Sequence in context: A006763 A158074 A200531 * A303014 A260359 A105250

Adjacent sequences:  A302317 A302318 A302319 * A302321 A302322 A302323

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 05 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 June 1 07:40 EDT 2020. Contains 334759 sequences. (Running on oeis4.)