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A088825
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Numbers n such that the sum of largest prime factors of numbers from 1 to n is divisible by n.
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4
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1, 2, 8, 9, 32, 62, 558, 993, 995, 1947, 2150, 4343, 9944, 10977, 43054658, 202275890, 2291937393, 2459073795, 2836929091, 3737529738, 21382629569
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| a(21) > 15*10^9. [From Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 01 2009]
a(22) > 10^11. [From Donovan Johnson (donovan.johnson(AT)yahoo.com), Jul 09 2010]
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FORMULA
| Solutions to Mod[A088822[x], x]=0.
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CROSSREFS
| Cf. A088821-A088824.
Sequence in context: A163619 A166968 A075644 * A181887 A181476 A055678
Adjacent sequences: A088822 A088823 A088824 * A088826 A088827 A088828
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Oct 22 2003
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EXTENSIONS
| More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 31 2003
a(17)-a(20) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 01 2009
a(21) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Jul 09 2010
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