

A066793


The start of a recordbreaking run of consecutive integers with an even number of prime factors.


4



1, 9, 14, 33, 54, 140, 213, 1934, 35811, 38405, 200938, 389409, 1792209, 5606457, 8405437, 68780189, 880346227, 85910903650, 87635944146, 284340107954, 2195312273836, 2864568747364, 3155591650029
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OFFSET

1,2


COMMENTS

a(21) > 10^12. [From Donovan Johnson, Oct 11 2010]
a(24) > 10^13.  Giovanni Resta, Aug 01 2013


LINKS

Table of n, a(n) for n=1..23.


CROSSREFS

Cf. A066794, A175201.
Sequence in context: A272781 A229543 A175201 * A275508 A139055 A294030
Adjacent sequences: A066790 A066791 A066792 * A066794 A066795 A066796


KEYWORD

nonn


AUTHOR

G. L. Honaker, Jr., Jan 18 2002


EXTENSIONS

Except for first 4 or 5 terms, computed by Shyam Sunder Gupta, Jan 26 2002
a(12) and a(14) corrected and a(18)a(20) from Donovan Johnson, Oct 11 2010
a(21)a(23) from Giovanni Resta, Aug 01 2013


STATUS

approved



