login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A209215 T(n,k)=Number of nXk 1..7 arrays with every element value z a city block distance of exactly z from another element value z 3
0, 1, 1, 1, 2, 1, 3, 16, 16, 3, 3, 152, 488, 152, 3, 16, 1721, 26029, 26029, 1721, 16, 24, 24255, 1958627, 8460962, 1958627, 24255, 24, 114, 399281, 201001373 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Table starts

..0.....1.......1.......3.......3........16.....24.114

..1.....2......16.....152....1721.....24255.399281

..1....16.....488...26029.1958627.201001373

..3...152...26029.8460962

..3..1721.1958627

.16.24255

.24

LINKS

Table of n, a(n) for n=1..31.

EXAMPLE

Some solutions for n=6 k=2

..2..4....5..6....4..4....4..2....2..3....2..2....1..1....6..4....2..5....1..1

..4..5....5..1....2..4....2..3....3..2....2..2....4..1....3..2....4..3....4..2

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

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

..1..4....2..5....4..4....3..3....1..1....2..1....3..4....2..4....2..3....3..4

..5..3....6..5....1..1....1..1....2..1....4..1....3..3....2..6....4..5....2..4

CROSSREFS

Sequence in context: A209394 A209023 A209058 * A000618 A132950 A197190

Adjacent sequences:  A209212 A209213 A209214 * A209216 A209217 A209218

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 06 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 February 22 18:05 EST 2019. Contains 320400 sequences. (Running on oeis4.)