A209194 Sophie Germain primes that are also highly cototient numbers.

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

Offset: 1

Author

N. J. A. Sloane, Mar 05 2012

Keywords

• nonn

Links

• PrimeFan, Listing of Esoteric Integer Sequences
• PrimeFan, Esoteric Integer Sequences [Cached copy]

Crossrefs

A005384 INTERSECT A100827.