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A059327 a(n) is smallest safe prime (A005385) such that a(n)+12n is the next safe prime, i.e., x = (a(n) - 1)/2) and x+6n are closest Sophie Germain primes. 2
11, 23, 227, 179, 107, 1367, 263, 887, 2099, 719, 587, 8819, 3467, 1019, 10163, 27827, 1619, 7823, 27299, 2207, 44267, 3203, 7247, 5099, 11807, 45887, 18119, 15803, 79559, 13163, 40127, 42839, 20663, 79979, 17483, 53267, 47963, 33863 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..37.

EXAMPLE

{11, 23, 227, 179, 107, ...} smallest safe primes generates {11+12, 23+24, 227+36, 179+48, 107+60, ...} = {23, 47, 263, 227, 167, ...} safe primes to which the corresponding Sophie Germain primes are {11, 23, 131, 113, 83, ...} respectively.

CROSSREFS

Cf. A005384, A005385, A033299.

Sequence in context: A261352 A018979 A181147 * A042005 A153318 A005485

Adjacent sequences:  A059324 A059325 A059326 * A059328 A059329 A059330

KEYWORD

nonn

AUTHOR

Labos Elemer, Jan 26 2001

STATUS

approved

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Last modified July 20 22:20 EDT 2019. Contains 325189 sequences. (Running on oeis4.)