A183736 - OEIS

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A183736

1/16 the number of (n+1) X 8 0..7 arrays with every 2 X 2 subblock strictly increasing clockwise or counterclockwise with one decrease, and at least two adjacent blocks having the same increasing direction.

23204876, 21320890377, 16635894447271, 16327766532728500, 19628509753968319015 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Column 7 of A183738.`
	LINKS	`Table of n, a(n) for n=1..5.`
	EXAMPLE	`Some solutions with the first block increasing clockwise for 3 X 8:` `..0..1..0..1..7..5..2..0....0..1..0..1..0..1..0..7....0..1..0..1..5..0..1..5` `..3..2..3..2..3..4..3..5....3..2..3..2..5..4..5..6....3..2..3..2..4..3..2..4` `..0..1..0..1..0..6..7..6....0..1..0..1..7..3..2..0....0..1..0..1..7..0..1..5` `...` `...R..L..R..L..L..R..L.......R..L..R..L..R..L..L.......R..L..R..L..R..R..L...` `...L..R..L..R..R..L..R.......L..R..L..R..L..R..R.......L..R..L..R..L..L..R...`
	CROSSREFS	`Sequence in context: A114666 A157079 A321065 * A105238 A252396 A236366` `Adjacent sequences: A183733 A183734 A183735 * A183737 A183738 A183739`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Jan 06 2011`
	STATUS	`approved`

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Last modified March 31 18:05 EDT 2023. Contains 361672 sequences. (Running on oeis4.)