A271033 - OEIS

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A271033

Number of nXnXn triangular 0..7 arrays with some element less than a w, nw or ne neighbor exactly once.

0, 168, 10164, 535106, 28658242, 1610555756, 95420380090, 5945425725202, 387907415514308, 26381892105883904 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Column 7 of A271034.`
	LINKS	`Table of n, a(n) for n=1..10.`
	EXAMPLE	`Some solutions for n=3` `....0......4......1......3......0......5......1......1......1......2......0` `...0.4....0.4....4.1....4.4....0.0....2.6....0.2....1.2....4.3....0.3....0.1` `..0.0.6..0.4.6..5.6.6..7.4.7..6.2.3..2.6.6..0.7.7..3.2.6..5.5.7..1.5.5..5.1.4`
	CROSSREFS	`Cf. A271034.` `Sequence in context: A003800 A278010 A006363 * A019286 A218413 A064767` `Adjacent sequences: A271030 A271031 A271032 * A271034 A271035 A271036`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Mar 29 2016`
	STATUS	`approved`

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Last modified August 18 14:22 EDT 2022. Contains 356215 sequences. (Running on oeis4.)