A112880 - OEIS

This site is supported by donations to The OEIS Foundation.

A112880

Sequence k(n) such that: define a(0)=3 then a(n)=k(n)*a(n-1)^2-1=least prime first of twin primes.

12, 18, 492, 702, 2310, 2370, 130650, 980910, 5528418, 21357012 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`Prime sequence in A112879`
	EXAMPLE	`123^2-1=107, 107 and 109 twin primes so k(1)=12` `18107^2-1=206081, 206081 and 206083 twin primes so k(2)=18`
	CROSSREFS	`Cf. A112879.` `Sequence in context: A166627 A018957 A110932 * A100541 A056688 A107911` `Adjacent sequences: A112877 A112878 A112879 * A112881 A112882 A112883`
	KEYWORD	`hard,nonn`
	AUTHOR	`Pierre CAMI (pierre-cami(AT)bbox.fr), Oct 01 2005`

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

Last modified February 17 21:13 EST 2012. Contains 206085 sequences.