A212317 Numbers m such that both 3*2^m + 5 and 5*2^m + 3 are prime.

1, 2, 3, 4, 5, 7, 8, 32

Offset

1,2

Comments

No more terms?

Links

Table of n, a(n) for n=1..8.

Mathematica

Select[Range[0, 2200], PrimeQ[5*2^#+3] && PrimeQ[3*2^#+5]&]

Crossrefs

Intersection of A057913 and A058586.

Sequence in context: A030290 A099088 A029447 * A161751 A354126 A245820

Adjacent sequences: A212314 A212315 A212316 * A212318 A212319 A212320

Keyword

nonn,more

Author

Zak Seidov, Oct 24 2013

Status

approved