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A205935 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards 9

%I #5 Mar 31 2012 12:37:09

%S 256,3036,3036,32208,95888,32208,319784,2554260,2554260,319784,

%T 3048544,61330824,164649752,61330824,3048544,28259556,1380479280,

%U 9355289120,9355289120,1380479280,28259556,256692580,29707151720,490921163308

%N T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards

%C Table starts

%C ........256...........3036.............32208................319784

%C .......3036..........95888...........2554260..............61330824

%C ......32208........2554260.........164649752............9355289120

%C .....319784.......61330824........9355289120.........1235093642064

%C ....3048544.....1380479280......490921163308.......148812223113936

%C ...28259556....29707151720....24368030395844.....16821962566961468

%C ..256692580...618727630440..1161408617136336...1815101219263424368

%C .2295975140.12572031551824.53673997085581436.189063838791570094396

%H R. H. Hardin, <a href="/A205935/b205935.txt">Table of n, a(n) for n = 1..71</a>

%e Some solutions for n=4 k=3

%e ..0..2..2..1....0..3..2..1....0..1..2..1....0..1..2..3....1..0..1..0

%e ..1..0..3..2....1..0..3..2....1..1..0..2....2..2..0..2....0..0..1..2

%e ..2..1..0..3....2..1..0..3....1..3..1..3....1..0..1..3....0..3..3..0

%e ..0..3..1..0....1..3..2..0....2..0..2..0....2..1..2..0....1..1..0..1

%e ..1..0..2..1....1..0..3..2....1..2..0..1....0..3..1..0....1..0..1..2

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Feb 01 2012

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Last modified May 26 13:56 EDT 2024. Contains 372826 sequences. (Running on oeis4.)