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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(23) > 10^12. [From Donovan Johnson, Oct 11 2010]

LINKS

Table of n, a(n) for n=1..22.

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

Cf. A066793, A066794.

Sequence in context: A181361 A056570 A165048 * A067813 A304769 A118720

Adjacent sequences:  A066960 A066961 A066962 * A066964 A066965 A066966

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

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Last modified March 26 14:18 EDT 2019. Contains 321497 sequences. (Running on oeis4.)