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A205836 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two 9
30, 111, 111, 423, 630, 423, 1611, 3642, 3642, 1611, 6132, 21126, 32106, 21126, 6132, 23340, 122526, 284910, 284910, 122526, 23340, 88839, 710526, 2531223, 3875376, 2531223, 710526, 88839, 338148, 4120230, 22488006, 52826862, 52826862, 22488006 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.....30......111........423.........1611...........6132...........23340
....111......630.......3642........21126.........122526..........710526
....423.....3642......32106.......284910........2531223........22488006
...1611....21126.....284910......3875376.......52826862.......720376872
...6132...122526....2531223.....52826862.....1105752330.....23163320754
..23340...710526...22488006....720376872....23163320754....745699860222
..88839..4120230..199775148...9823579164...485313697782..24015926216514
.338148.23892558.1774684842.133958429916.10168541874792.773556773975484
LINKS
EXAMPLE
Some solutions for n=4 k=3
..1..1..0..1....2..0..0..1....1..2..1..2....0..0..1..0....1..1..0..2
..0..2..1..2....1..2..1..2....2..1..2..0....2..1..2..1....0..2..1..0
..1..0..2..1....2..1..0..1....0..2..0..1....1..2..0..2....2..1..2..1
..2..1..0..2....1..0..1..2....2..1..2..0....1..0..1..0....1..0..0..2
..0..2..1..0....0..1..0..0....1..2..0..2....2..1..2..1....0..2..1..0
CROSSREFS
Sequence in context: A193873 A266955 A368565 * A043466 A044281 A044662
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 01 2012
STATUS
approved

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Last modified June 25 04:03 EDT 2024. Contains 373697 sequences. (Running on oeis4.)