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 A209394 T(n,k) = Number of n X k 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 June 7 21:29 EDT 2023. Contains 363157 sequences. (Running on oeis4.)