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A020621 Smallest nonempty set S containing prime divisors of 8k+9 for each k in S. +0
1
5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 71, 79, 83, 97, 101, 107, 109, 113, 127, 139, 149, 151, 157, 163, 173, 193, 199, 241, 257, 307, 317, 337, 353, 389, 421, 431, 433, 467, 491, 499, 503, 509, 541, 577, 631, 641, 673, 683, 881, 1201, 1217, 1553 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A020626 A136207 A020624 this_sequence A020630 A020586 A020602

Adjacent sequences: A020618 A020619 A020620 this_sequence A020622 A020623 A020624

KEYWORD

nonn,fini

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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