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!)
A209393 Number of nX4 1..4 arrays with every element value z a city block distance of exactly z from another element value z 0
3, 152, 22416, 4488765, 816320455 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A209394

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A100203 A287319 A189248 * A095225 A039934 A156990

Adjacent sequences:  A209390 A209391 A209392 * A209394 A209395 A209396

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 07 2012

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 21 11:09 EDT 2021. Contains 348150 sequences. (Running on oeis4.)