A186623 - OEIS

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A186623

Number of (n+2)X4 0..2 arrays with 3X3 subblock sums nondecreasing rightwards and downwards.

317115, 9957573, 313250283, 9626194591, 205142945972, 4375747771546, 93024904363336, 1542711926710876, 25595116082268286, 424415611230113963, 5897079175874583945, 81949864725872441631, 1138621686844736898393 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Column 2 of A186625`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..80`
	EXAMPLE	`Some solutions for 6X4` `..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0` `..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0` `..0..0..0..1....2..0..2..2....1..1..0..2....0..0..1..1....1..1..0..2` `..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0` `..1..1..1..0....0..1..1..1....0..0..2..2....2..2..0..1....1..2..1..2` `..0..2..1..2....2..2..2..1....0..2..0..2....0..0..1..2....2..2..0..2`
	CROSSREFS	`Sequence in context: A092014 A205984 A153749 * A202468 A210317 A205931` `Adjacent sequences: A186620 A186621 A186622 * A186624 A186625 A186626`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Feb 24 2011`
	STATUS	`approved`

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Last modified May 24 01:37 EDT 2013. Contains 225613 sequences.