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A205909 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock the same 8
81, 369, 369, 1764, 2943, 1764, 8655, 24045, 24045, 8655, 43155, 201324, 327501, 201324, 43155, 218034, 1712907, 4541781, 4541781, 1712907, 218034, 1112664, 14747754, 63696738, 103275303, 63696738, 14747754, 1112664, 5722236, 128014116 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
......81........369.........1764...........8655............43155
.....369.......2943........24045.........201324..........1712907
....1764......24045.......327501........4541781.........63696738
....8655.....201324......4541781......103275303.......2360853939
...43155....1712907.....63696738.....2360853939......87381878025
..218034...14747754....900968550....54239297565....3239997622134
.1112664..128014116..12813949461..1250218771158..120298113709833
.5722236.1117395426.182896937223.28878115209258.4471201485225354
LINKS
EXAMPLE
Some solutions for n=4 k=3
..1..1..0..0....0..0..1..2....1..0..2..0....2..0..2..2....2..2..0..1
..1..2..2..0....1..0..1..1....1..0..0..0....2..2..2..1....2..0..0..1
..1..2..0..0....2..0..0..0....2..2..0..1....0..0..1..1....0..0..1..1
..2..2..2..0....2..2..2..2....2..0..0..0....1..0..1..0....1..0..1..2
..0..0..2..2....0..1..2..1....2..0..1..1....0..0..0..0....1..1..1..1
CROSSREFS
Column 1 is A205737
Sequence in context: A205736 A237850 A205917 * A237843 A205737 A236035
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 01 2012
STATUS
approved

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Last modified July 15 07:59 EDT 2024. Contains 374324 sequences. (Running on oeis4.)