A034881 - OEIS

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A034881

Smallest number a(n) such that 1+a(n)a(n-i) is prime for all i.

1, 2, 6, 18, 30, 270, 606, 123120, 888456, 23070450, 238550160, 8282903640, 72789145650 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	REFERENCES	`Sci.math, "Sets producing primes."`
	CROSSREFS	`Sequence in context: A185382 A066286 A197168 * A146345 A064842 A101695` `Adjacent sequences: A034878 A034879 A034880 * A034882 A034883 A034884`
	KEYWORD	`easy,nonn`
	AUTHOR	`Erich Friedman (erich.friedman(AT)stetson.edu)`
	EXTENSIONS	`a(8) to a(12) found by Phil Carmody. a(14) > 1.04*10^13 (if it exists)` `More terms from Don Reble (djr(AT)nk.ca), Aug 11 2003`

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Last modified February 15 10:06 EST 2012. Contains 205763 sequences.