OFFSET
1,1
COMMENTS
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Accumulate[Range[300]], PrimeQ[(4#+1)/5]&] (* Harvey P. Dale, Sep 18 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Wolfdieter Lang, Feb 27 2012
STATUS
approved