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A100377 Number of prime numbers >= P(n)# and < P(n+1)# where P(i)=i-th prime, P(i)#=i-th primorial. 0
3, 7, 36, 297, 2905, 39083, 603698, 11637502, 288086265, 7728273214, 251460107734 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

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

Essentially the same as A072236. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 02 2008]

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 * A167169 A199347 A049493

Adjacent sequences:  A100374 A100375 A100376 * A100378 A100379 A100380

KEYWORD

more,nonn

AUTHOR

Pierre CAMI (pierre-cami(AT)bbox.fr), Dec 29 2004

EXTENSIONS

More terms from Bernardo Boncompagni (redgolpe(AT)redgolpe.com), Jun 28 2007

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Last modified February 16 06:08 EST 2012. Contains 205860 sequences.