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A125034 Primes of the form 2^n - 69. 1
59, 443, 1979, 4027, 8123, 524219, 1048507, 2097083, 8388539, 2147483579, 34359738299, 137438953403, 35184372088763, 144115188075855803, 9444732965739290427323, 19342813113834066795298747 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Corresponding n's are 7,9,11,12,13,19,20,21,23,31,35,37,45,57,73,84,89. Cf. A124977.

EXAMPLE

2^7-69=59 (prime), 2^9-69=443 (prime), 2^11-69=1979(prime).

MATHEMATICA

Select[Range[7, 100], PrimeQ[2^#-69]&]

CROSSREFS

Cf. A124977.

Sequence in context: A118624 A142604 A071771 * A140024 A142363 A093259

Adjacent sequences:  A125031 A125032 A125033 * A125035 A125036 A125037

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Nov 17 2006

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.