A066963 Start of a record-breaking run of consecutive composite integers with an odd number of prime factors.

8, 27, 170, 242, 2522, 5882, 18238, 48513, 61532, 506517, 752714, 1213848, 3098613, 5481504, 78214964, 103886546, 118689518, 1608906624, 3939877246, 7964728742, 166384601987, 250060982098

Offset: 1

Author

Shyam Sunder Gupta, Jan 27 2002

Keywords

• more
• nonn

Comments

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

Examples

			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.

Extensions

a(18)-a(21) from Donovan Johnson, Sep 09 2008

a(22) from Donovan Johnson, Oct 11 2010