Many excellent designs for a new banner were submitted. We will use the best of them in rotation.
1,1
Table of n, a(n) for n=1..12.
Select[Table[6 2^n+1, {n, 0, 250}], PrimeQ] [From Harvey P. Dale, Dec. 17, 2010]
Sequence in context: A177952 A132373 A110293 * A001544 A202152 A136720
Adjacent sequences: A039684 A039685 A039686 * A039688 A039689 A039690
nonn
Felice Russo
For more terms see A002253.
approved
