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 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 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

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Last modified February 22 18:05 EST 2019. Contains 320400 sequences. (Running on oeis4.)