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A209610
T(n,k)=Number of nXk 1..2 arrays with every element value z a city block distance of exactly z from another element value z
9
0, 1, 1, 1, 2, 1, 2, 11, 11, 2, 2, 45, 125, 45, 2, 4, 170, 955, 955, 170, 4, 6, 538, 6218, 11879, 6218, 538, 6, 9, 1674, 39667, 151736, 151736, 39667, 1674, 9, 13, 5410, 260861, 1947347, 3833954, 1947347, 260861, 5410, 13, 19, 18001, 1735169, 24912066
OFFSET
1,5
COMMENTS
Table starts
.0....1.......1.........2...........2..............4................6
.1....2......11........45.........170............538.............1674
.1...11.....125.......955........6218..........39667...........260861
.2...45.....955.....11879......151736........1947347.........24912066
.2..170....6218....151736.....3833954.......95442732.......2375975754
.4..538...39667...1947347....95442732.....4623938410.....223164388883
.6.1674..260861..24912066..2375975754...223164388883...20901164219657
.9.5410.1735169.322047969.59592537600.10856162934984.1975174382937912
LINKS
EXAMPLE
Some solutions for n=3 k=3
..2..2..2....2..2..2....1..2..2....1..1..1....2..2..2....1..2..1....2..2..2
..1..1..2....2..1..2....1..2..2....1..2..2....2..2..2....1..1..1....1..2..1
..1..1..1....1..1..1....1..1..1....2..2..2....1..1..1....2..2..2....1..2..1
CROSSREFS
Sequence in context: A069238 A248977 A266655 * A324058 A165313 A364074
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 10 2012
STATUS
approved