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 A206109 T(n,k) = number of (n+1) X (k+1) 0..3 arrays with the number of clockwise edge increases in 2 X 2 subblocks nondecreasing, and counterclockwise edge increases nonincreasing, rightwards and downwards. 9
 256, 2292, 2292, 15564, 33688, 15564, 95408, 359932, 359932, 95408, 574364, 3991540, 8114696, 3991540, 574364, 3472540, 48804116, 210981300, 210981300, 48804116, 3472540, 21122008, 628383700, 5942161220, 12793359564, 5942161220 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......256.........2292...........15564..............95408 ......2292........33688..........359932............3991540 .....15564.......359932.........8114696..........210981300 .....95408......3991540.......210981300........12793359564 ....574364.....48804116......5942161220.......816173366244 ...3472540....628383700....173412646632.....53034080059688 ..21122008...8315311380...5144980591044...3471628061187072 .129099360.111777355164.153835526412512.227967307330878004 LINKS R. H. Hardin, Table of n, a(n) for n = 1..112 EXAMPLE Some solutions for n=4, k=3: ..3..1..1..2....1..1..1..0....1..1..0..3....1..1..1..0....0..1..2..0 ..0..0..0..0....3..3..1..0....2..3..2..0....3..3..1..0....0..1..1..1 ..1..3..3..1....2..3..1..0....1..2..0..1....2..3..1..0....0..0..0..2 ..1..2..2..2....2..3..1..0....3..0..1..3....2..3..1..1....3..3..3..3 ..1..2..0..3....2..3..1..0....0..2..3..0....2..3..3..2....0..3..1..0 CROSSREFS Sequence in context: A235521 A235652 A235518 * A206102 A014713 A205642 Adjacent sequences: A206106 A206107 A206108 * A206110 A206111 A206112 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 03 2012 STATUS approved

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Last modified June 5 05:23 EDT 2023. Contains 363130 sequences. (Running on oeis4.)