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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
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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
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Last modified September 11 16:20 EDT 2024. Contains 375836 sequences. (Running on oeis4.)