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A205930 Number of (n+1)X4 0..3 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards 1
32208, 2554260, 164649752, 9355289120, 490921163308, 24368030395844, 1161408617136336, 53673997085581436, 2421739362640771720, 107206715246675715876, 4673560524189894431892, 201199196153780817200392 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A205935
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..0....0..1..2..3....1..0..2..2....0..3..2..1....1..2..1..1
..0..3..2..1....2..2..0..2....0..1..0..3....1..0..3..2....0..0..3..2
..1..0..3..2....1..0..1..3....0..2..1..0....2..1..0..3....2..1..0..3
..3..1..0..3....2..1..2..0....0..3..2..1....1..3..2..0....0..2..1..0
..0..2..1..0....0..3..1..0....3..2..3..2....1..0..3..2....2..1..0..3
CROSSREFS
Sequence in context: A250897 A366512 A146896 * A269930 A137837 A115501
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 01 2012
STATUS
approved

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Last modified June 17 10:05 EDT 2024. Contains 373445 sequences. (Running on oeis4.)