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A209394 T(n,k)=Number of nXk 1..4 arrays with every element value z a city block distance of exactly z from another element value z 4
0, 1, 1, 1, 2, 1, 3, 16, 16, 3, 3, 152, 488, 152, 3, 13, 1449, 22416, 22416, 1449, 13, 16, 11655, 978956, 4488765, 978956, 11655, 16, 42, 89469, 32651213, 816320455, 816320455, 32651213, 89469, 42, 74, 705803, 1094498759 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Table starts

..0.....1........1.........3.........3.......13.........16.....42.74

..1.....2.......16.......152......1449....11655......89469.705803

..1....16......488.....22416....978956.32651213.1094498759

..3...152....22416...4488765.816320455

..3..1449...978956.816320455

.13.11655.32651213

.16.89469

.42

LINKS

Table of n, a(n) for n=1..39.

EXAMPLE

Some solutions for n=4 k=3

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

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

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

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

CROSSREFS

Sequence in context: A095852 A283748 A209365 * A209023 A209058 A209215

Adjacent sequences:  A209391 A209392 A209393 * A209395 A209396 A209397

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 07 2012

STATUS

approved

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Last modified December 9 06:07 EST 2021. Contains 349627 sequences. (Running on oeis4.)