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A066793 The start of a record-breaking 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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified August 14 07:04 EDT 2020. Contains 336477 sequences. (Running on oeis4.)