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1, 1, 4, 6, 8, 23, 24, 1804, 1968, 8375, 53750, 243864, 639324, 41381620, 102621343, 7802708736, 7802708736
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| a(16) > 6.646*10^9. - David Wasserman (dwasserm(AT)earthlink.net), Jan 08 2006
a(18) > 10^11. [From Donovan Johnson (donovan.johnson(AT)yahoo.com), Oct 24 2009]
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CROSSREFS
| Cf. A083788, A083789, A083791.
Cf. A034173. A124058 gives another version of the same sequence.
Sequence in context: A073437 A019196 A086561 * A074125 A063719 A106366
Adjacent sequences: A083787 A083788 A083789 * A083791 A083792 A083793
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 07 2003
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EXTENSIONS
| Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 17 2003
More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 21 2003. a(16)>750000000.
a(16)-a(17) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Oct 24 2009
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