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A066963
Start of a record-breaking run of consecutive composite integers with an odd number of prime factors.
0
8, 27, 170, 242, 2522, 5882, 18238, 48513, 61532, 506517, 752714, 1213848, 3098613, 5481504, 78214964, 103886546, 118689518, 1608906624, 3939877246, 7964728742, 166384601987, 250060982098
OFFSET
1,1
COMMENTS
a(23) > 10^12. [Donovan Johnson, Oct 11 2010]
EXAMPLE
a(3)=170 because this is the start of third record breaking run of consecutive composite integers (170,171,172) with an odd number of prime factors (170=2*5*17, 171=3*3*19, 172=2*2*43).
CROSSREFS
Sequence in context: A056570 A343318 A165048 * A067813 A304769 A118720
KEYWORD
more,nonn
AUTHOR
Shyam Sunder Gupta, Jan 27 2002
EXTENSIONS
a(18)-a(21) from Donovan Johnson, Sep 09 2008
a(22) from Donovan Johnson, Oct 11 2010
STATUS
approved