A020609 - OEIS

A020609

Smallest nonempty set S containing prime divisors of 7k+4 for each k in S.

3, 5, 11, 13, 19, 23, 107, 137, 251, 457, 587, 3203 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..12.`
	CROSSREFS	`Sequence in context: A045405 A059311 A023209 * A151917 A059639 A059263` `Adjacent sequences: A020606 A020607 A020608 * A020610 A020611 A020612`
	KEYWORD	`nonn,fini,full`
	AUTHOR	`David W. Wilson`
	STATUS	`approved`

Last modified June 30 19:43 EDT 2022. Contains 354945 sequences. (Running on oeis4.)