A025486 - OEIS

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A025486

Least k with A025255(k) = n.

0, 5, 10, 26, 170, 7226, 13053770, 42600227803226, 453694852221687377444001770, 51459754733114686962148583993443846186613037940783226 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`For n >= 3, a(n) = a(n-1)^2/4+1.` `Conjecture: a(n)=A006892(n+2)+3 for n>=2. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 23 2007`
	CROSSREFS	`Sequence in context: A166388 A066872 A063478 * A128665 A054298 A022094` `Adjacent sequences: A025483 A025484 A025485 * A025487 A025488 A025489`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified February 13 17:43 EST 2012. Contains 205523 sequences.