OFFSET
0,1
COMMENTS
EXAMPLE
k=6 is a term: abs(6 - Sum_{m=2..6} pi(prime(k)/m)) = abs(6 - 3 - 2 - 2 - 1 - 1) = abs(-3) = 3, which is prime.
MATHEMATICA
Select[Range[320], PrimeQ[Abs[# - Sum[PrimePi[Prime[#]/m], {m, 2, #}]]] &] (* Amiram Eldar, Aug 08 2023 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Saish S. Kambali, Aug 08 2023
STATUS
approved