A262106 - OEIS

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A262106

Number of (n+1)X(1+1) 0..2 arrays with each row nonprime and column prime, read as a base 3 number with top and left being the most significant digits.

7, 17, 54, 171, 554, 1926, 6976, 25923, 99597, 395785 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Column 1 of A262109.`
	LINKS	`Table of n, a(n) for n=1..10.`
	EXAMPLE	`Some solutions for n=4` `..0..0....2..2....0..0....0..0....2..2....2..2....0..0....2..2....0..1....2..2` `..0..0....2..0....2..2....0..0....2..2....0..1....0..0....1..1....0..1....0..0` `..0..0....2..0....2..0....0..1....0..0....2..2....0..0....2..2....2..0....0..0` `..1..1....1..1....2..2....0..0....2..2....0..1....1..1....1..1....1..1....0..0` `..2..0....2..2....1..1....2..2....1..1....1..1....2..2....1..1....2..2....1..1`
	CROSSREFS	`Cf. A262109.` `Sequence in context: A115914 A352616 A094534 * A081632 A276907 A293464` `Adjacent sequences: A262103 A262104 A262105 * A262107 A262108 A262109`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Sep 11 2015`
	STATUS	`approved`

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Last modified March 31 21:40 EDT 2023. Contains 361673 sequences. (Running on oeis4.)