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A066838 Product of primes < n that do not divide n. +0
1
1, 1, 2, 3, 6, 5, 30, 105, 70, 21, 210, 385, 2310, 2145, 2002, 15015, 30030, 85085, 510510, 969969, 461890, 440895, 9699690, 37182145, 44618574, 8580495, 74364290, 15935205, 223092870, 215656441, 6469693230, 100280245065 (list; graph; listen)
OFFSET

1,3

EXAMPLE

a(8) = 105 = 3 * 5 * 7 because 3, 5, and 7 are the primes < 8 that do not divide 8.

CROSSREFS

Sequence in context: A098012 A066117 A124655 this_sequence A084678 A102402 A124498

Adjacent sequences: A066835 A066836 A066837 this_sequence A066839 A066840 A066841

KEYWORD

nonn

AUTHOR

Leroy Quet (qq-quet(AT)mindspring.com), Jan 20 2002

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Last modified September 5 19:27 EDT 2008. Contains 143485 sequences.


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