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A209194 Sophie Germain primes that are also highly cototient numbers. 0
2, 23, 83, 89, 113, 419, 509, 659, 1049, 1889, 3359, 4409, 9029, 10709, 11549, 13649, 20789, 23099, 57329, 84629, 90089, 113189, 115499, 207479, 210209, 270269, 314159, 324869, 330329, 420419, 570569, 658349, 660659, 810809, 840839, 1021019, 1138829 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
A005384 INTERSECT A100827.
CROSSREFS
Cf. A100827.
Sequence in context: A042679 A354691 A345701 * A097232 A339474 A222564
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Mar 05 2012
STATUS
approved

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)