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!)
A197341 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,2,1,2 for x=0,1,2,3,4 1
1, 73, 856, 12148, 159818, 2218128, 30771790, 425710602, 5901225887, 81906890563, 1136740659494, 15777299597218, 219003011443420, 3040043574547156, 42200212094991310, 585805173715282824, 8131923948348934992 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Every 0 is next to 0 3's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 2's

Column 7 of A197342

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..194

EXAMPLE

Some solutions containing all values 0 to 4 for n=4

..2..2..2..0..1..3..1....0..0..2..2..2..0..1....2..2..2..0..1..3..1

..2..4..2..2..0..1..0....0..2..2..0..2..1..3....2..4..2..1..0..1..0

..2..2..4..2..0..1..0....0..2..4..2..2..0..1....2..2..2..3..1..0..0

..0..2..2..2..1..3..1....0..2..2..2..0..0..0....0..0..0..1..0..0..0

CROSSREFS

Sequence in context: A272768 A100412 A169830 * A104907 A296024 A254136

Adjacent sequences:  A197338 A197339 A197340 * A197342 A197343 A197344

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 13 2011

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 November 28 16:21 EST 2021. Contains 349413 sequences. (Running on oeis4.)