A167242 - OEIS

This site is supported by donations to The OEIS Foundation.

A167242

Number of ways to partition a 2*n X 3 grid into 2 connected equal-area regions

3, 19, 85, 355, 1435, 5717, 22645, 89521, 353735, 1397863, 5525341, 21846421, 86403027, 341822335, 1352660761, 5354124895, 21197945407, 83945924393, 332507403625, 1317329758675 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..20.`
	EXAMPLE	`Some solutions for n=4` `...1.1.1...1.1.1...1.1.2...1.1.2...1.1.2...1.1.1...1.1.1...1.1.1...1.1.1` `...1.1.1...1.1.2...1.2.2...1.1.2...1.2.2...2.2.1...1.1.1...2.1.1...1.1.1` `...2.2.1...1.2.2...1.1.2...1.2.2...1.2.2...2.2.1...2.1.1...2.2.1...2.1.1` `...2.1.1...1.2.2...1.2.2...1.2.2...1.1.2...2.2.1...2.2.1...2.1.1...2.2.1` `...2.2.1...1.2.2...1.1.2...1.2.2...1.1.2...2.1.1...2.2.1...2.2.1...2.2.1` `...2.2.1...1.1.2...1.1.2...1.2.2...1.1.2...2.1.1...2.1.1...2.1.1...2.2.1` `...2.2.1...1.2.2...1.2.2...1.1.2...1.1.2...2.1.1...2.2.2...2.1.2...2.2.1` `...2.2.2...1.2.2...1.2.2...1.1.2...2.2.2...2.2.2...2.2.2...2.2.2...2.2.2`
	CROSSREFS	`Sequence in context: A099421 A061171 A163431 * A089621 A204256 A015528` `Adjacent sequences: A167239 A167240 A167241 * A167243 A167244 A167245`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Oct 31 2009`
	STATUS	`approved`

Content is available under The OEIS End-User License Agreement .

Last modified May 23 17:52 EDT 2013. Contains 225611 sequences.