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

1,1

Links

Table of n, a(n) for n=1..37.

PrimeFan, Listing of Esoteric Integer Sequences

PrimeFan, Esoteric Integer Sequences [Cached copy]

Crossrefs

A005384 INTERSECT A100827.

Sequence in context: A042679 A354691 A345701 * A097232 A339474 A222564

Adjacent sequences: A209191 A209192 A209193 * A209195 A209196 A209197

Keyword

nonn

Author

N. J. A. Sloane, Mar 05 2012

Status

approved