A243430 Primes of the form 2^n + 43.

47, 59, 107, 4139, 16427, 65579, 262187, 16777259, 302231454903657293676587, 4835703278458516698824747, 20769187434139310514121985316880427

Offset

1,1

Comments

Associated n: 2, 4, 6, 12, 14, 16, 18, 24, 78, 82, 114, 234, 268, 286, ...

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..19

Mathematica

Select[Table[2^n + 43, {n, 0, 500}], PrimeQ]

Prog

(Magma) [a: n in [0..500] | IsPrime(a) where a is 2^n+43];

Crossrefs

Cf. similar sequences listed in A243429.

Sequence in context: A102274 A139909 A368077 * A342093 A126980 A354442

Adjacent sequences: A243427 A243428 A243429 * A243431 A243432 A243433

Keyword

nonn

Author

Vincenzo Librandi, Jun 05 2014

Status

approved