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Search: id:A091377
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A091377 Numbers having fewer prime factors than the value of their smallest prime factor. +0
5
1, 2, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 29, 31, 33, 35, 37, 39, 41, 43, 47, 49, 51, 53, 55, 57, 59, 61, 65, 67, 69, 71, 73, 77, 79, 83, 85, 87, 89, 91, 93, 95, 97, 101, 103, 107, 109, 111, 113, 115, 119, 121, 123, 125, 127, 129, 131, 133, 137, 139, 141, 143 (list; graph; listen)
OFFSET

1,2

COMMENT

A091371(a(n)) > 0: A001222(a(n))<A020639(a(n)).

CROSSREFS

Cf. A091374, A091376, A091375.

Sequence in context: A004274 A004280 A053224 this_sequence A005357 A092757 A092919

Adjacent sequences: A091374 A091375 A091376 this_sequence A091378 A091379 A091380

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Jan 04 2004

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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