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A101998
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Numbers 32n-1 such that 4n-1, 8n-1, 16n-1, 32n-1 and 64n-1 are primes.
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5
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1439, 429119, 507359, 1014719, 1017119, 2034239, 2368799, 2727359, 4858559, 6484319, 8553599, 8981279, 12789599, 12972959, 14567999, 14929919, 15301439, 15367679, 16362719, 17107199, 17263199, 17962559, 18224639, 18857759
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| 4*45-1=179, 8*45-1=359, 16*45-1=719, 32*45-1=1439 and 64*45-1=2879 are primes, so the first entry is 1439.
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CROSSREFS
| Cf. A101994, A101995, A101996, A101997, A101999.
Sequence in context: A204862 A101798 A081426 * A174277 A063846 A179691
Adjacent sequences: A101995 A101996 A101997 * A101999 A102000 A102001
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KEYWORD
| easy,nonn
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AUTHOR
| Douglas Stones (dssto1(AT)student.monash.edu.au), Dec 23 2004
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