OFFSET
1,1
COMMENTS
Equivalent definition: primes p for which A007814(p!) is even. Apparently, the sequence is A027697 without the 2 (see A014499). [R. J. Mathar, Oct 26 2010]
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Range[500], PrimeQ[#] && EvenQ @ IntegerExponent[#!, 2] &] (* Amiram Eldar, Sep 13 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Shevelev, Apr 22 2010
EXTENSIONS
Corrected (37 added, 41 added, 43 removed...) and extended by R. J. Mathar, Oct 26 2010
STATUS
approved