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A101995
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4n-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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179, 53639, 63419, 126839, 127139, 254279, 296099, 340919, 607319, 810539, 1069199, 1122659, 1598699, 1621619, 1820999, 1866239, 1912679, 1920959, 2045339, 2138399, 2157899, 2245319, 2278079, 2357219, 2667779, 2865839
(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 179.
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CROSSREFS
| Cf. A002515, A101794. Cf. A101994, A101996, A101997, A101998, A101999.
Sequence in context: A168537 A130736 A200955 * A036203 A053325 A119542
Adjacent sequences: A101992 A101993 A101994 * A101996 A101997 A101998
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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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