Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 4500 articles have referenced us, often saying "we would not have discovered this result without the OEIS".
1,1
Table of n, a(n) for n=1..5.
Eric Weisstein's World of Mathematics, Euler Number.
Eric Weisstein's World of Mathematics, Integer Sequence Primes
Select[Range[100], PrimeQ[EulerE[#]] &]/2 (* Harvey P. Dale, Aug 10 2011 *)
Cf. A000364.
Sequence in context: A061490 A048827 A032077 * A066735 A232498 A254380
Adjacent sequences: A014544 A014545 A014546 * A014548 A014549 A014550
more,nonn
Eric W. Weisstein
Offset corrected by Arkadiusz Wesolowski, Oct 17 2011
approved