OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
MATHEMATICA
a = Table[PrimePi[n^2 + n + 41], {n, 0, 39}] (* correct only up to 39 *)
PrimePi[Select[Table[n^2 + n + 41, {n, 0, 100}], PrimeQ]] (* Amiram Eldar, Sep 06 2024 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Roger L. Bagula, May 11 2006
EXTENSIONS
Offset corrected by Assoc. Eds. of the OEIS, Jun 15 2010
STATUS
approved