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Search: id:A010847
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A010847 Number of numbers <= n with a prime factor not in n. +0
2
0, 0, 1, 1, 3, 1, 5, 4, 6, 4, 9, 4, 11, 8, 10, 11, 15, 8, 17, 12, 16, 15, 21, 13, 22, 19, 23, 20, 27, 12, 29, 26, 27, 26, 30, 22, 35, 30, 33, 29, 39, 23, 41, 35, 37, 38, 45, 33, 46, 38, 45, 43, 51, 38, 50, 45, 51, 50, 57, 34, 59, 54, 55, 57, 60, 44, 65, 58, 63, 50, 69, 54, 71 (list; graph; listen)
OFFSET

1,5

CROSSREFS

Adjacent sequences: A010844 A010845 A010846 this_sequence A010848 A010849 A010850

Sequence in context: A112620 A021321 A129676 this_sequence A082129 A096374 A007085

KEYWORD

nonn,easy

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.


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