A100377 Number of prime numbers >= P(n)# and < P(n+1)# where P(i)=i-th prime, P(i)#=i-th primorial.

3, 7, 36, 297, 2905, 39083, 603698, 11637502, 288086265, 7728273214, 251460107734

Offset

1,1

Comments

It appears that a(n) > P(n)#. Is this always true ?

Essentially the same as A072236. [From R. J. Mathar, Sep 02 2008]

Links

Table of n, a(n) for n=1..11.

Example

P(1)#=2 P(2)#=6, 2 and 3 and 5 >= 2 and < 6 so a(1)=3

Crossrefs

Sequence in context: A156465 A049366 A081010 * A270396 A167169 A269995

Adjacent sequences: A100374 A100375 A100376 * A100378 A100379 A100380

Keyword

more,nonn

Author

Pierre CAMI, Dec 29 2004

Extensions

More terms from Bernardo Boncompagni, Jun 28 2007

Status

approved