A104073 Primes of the form 2^n+7^2.

53, 113, 16433, 262193, 4194353, 67108913, 5846006549323611672814739330865132078623730171953, 1496577676626844588240573268701473812127674924007473

Offset

1,1

Comments

a(14) has 1187 decimal digits. - Vincenzo Librandi, Jul 19 2012

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..13

Mathematica

Select[Table[2^n+49, {n, 0, 400}], PrimeQ] (* Vincenzo Librandi, Jul 19 2012 *)

Prog

(Magma) [ a: n in [0..250] | IsPrime(a) where a is 2^n+49]; // Vincenzo Librandi, Jul 19 2012

Crossrefs

Sequence in context: A139504 A142798 A140025 * A044240 A044621 A239124

Adjacent sequences: A104070 A104071 A104072 * A104074 A104075 A104076

Keyword

nonn

Author

Roger L. Bagula, Mar 02 2005

Status

approved