A094699 Number of prime partition numbers <= n-th partition number.

0, 0, 1, 2, 3, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8

Offset

1,4

Links

Table of n, a(n) for n=1..102.

Prog

(PARI) a(n)=sum(i=1, n, ispseudoprime(numbpart(i))) \\ Charles R Greathouse IV, May 28 2015

Crossrefs

Cf. A049575, A000041, A000720, A094700.

Sequence in context: A210032 A093392 A079947 * A194259 A246264 A102676

Adjacent sequences: A094696 A094697 A094698 * A094700 A094701 A094702

Keyword

nonn

Author

Reinhard Zumkeller, May 20 2004

Status

approved