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A066793
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The start of a record-breaking run of consecutive integers with an even number of prime factors.
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2
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1, 9, 14, 33, 54, 140, 213, 1934, 35811, 38405, 200938, 389409, 1792209, 5606457, 8405437, 68780189, 880346227, 85910903650, 87635944146, 284340107954
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| a(21) > 10^12. [From Donovan Johnson (donovan.johnson(AT)yahoo.com), Oct 11 2010]
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CROSSREFS
| Cf. A066794.
Sequence in context: A104812 A093021 A175201 * A139055 A079625 A027009
Adjacent sequences: A066790 A066791 A066792 * A066794 A066795 A066796
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KEYWORD
| nonn
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AUTHOR
| G. L. Honaker, Jr. (honak3r(AT)gmail.com), Jan 18 2002
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EXTENSIONS
| Except for first 4 or 5 terms, computed by Shyam Sunder Gupta (guptass(AT)rediffmail.com), Jan 26 2002
a(12) and a(14) corrected and a(18)-a(20) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Oct 11 2010
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