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A020627 Smallest nonempty set S containing prime divisors of 9k+5 for each k in S. 0
2, 7, 11, 13, 17, 19, 23, 29, 43, 53, 59, 61, 67, 71, 79, 101, 179, 241, 277, 367, 457, 827, 1087, 1249, 1549, 2447, 5507, 5623, 12653, 56941 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..30.

CROSSREFS

Sequence in context: A069180 A253898 A173135 * A043292 A207526 A175442

Adjacent sequences:  A020624 A020625 A020626 * A020628 A020629 A020630

KEYWORD

nonn,fini,full

AUTHOR

David W. Wilson

STATUS

approved

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Last modified January 22 21:47 EST 2022. Contains 350504 sequences. (Running on oeis4.)