OFFSET
1,5
LINKS
Pierre CAMI, Table of n, a(n) for n = 1..5000
MATHEMATICA
Table[a = 0; While[! PrimeQ[(2^n + a)*2^n + 1], a++]; a, {n, 100}] (* T. D. Noe, Jun 11 2011 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Pierre CAMI, Jun 09 2011
STATUS
approved