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Search: id:A100377
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| A100377 |
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Number of prime numbers >= P(n)# and < P(n+1)# where P(i)=i-th prime, P(i)#=i-th primorial. |
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+0
1
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| 3, 7, 36, 297, 2905, 39083, 603698, 11637502, 288086265, 7728273214, 251460107734
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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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]
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EXAMPLE
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P(1)#=2 P(2)#=6, 2 and 3 and 5 >= 2 and < 6 so a(1)=3
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CROSSREFS
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Adjacent sequences: A100374 A100375 A100376 this_sequence A100378 A100379 A100380
Sequence in context: A102917 A049366 A081010 this_sequence A049493 A020463 A057625
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KEYWORD
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more,nonn
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AUTHOR
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Pierre CAMI (pierrecami(AT)tele2.fr), Dec 29 2004
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EXTENSIONS
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More terms from Bernardo Boncompagni (redgolpe(AT)redgolpe.com), Jun 28 2007
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