

A049036


Mean gap between successive primes up to nth prime is an integer.


4



2, 10, 68, 438, 442, 2616, 100350, 100354, 100360, 637198, 637306, 27066970, 27067050, 27067102, 27067114, 27067116, 179992840, 179993002, 55762149072, 382465573492, 2636913002950
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..21.
C. K. Caldwell, Prime Gaps


FORMULA

n such that (n  1) divides (prime(n)  n  1), or equivalently,
n such that (n  1) divides (prime(n)  2).


EXAMPLE

a(2)=10 since 9 (number of gaps) divides 18 (number of composites less than 29, the 10th prime). Therefore the "average" gap less than 29 is exactly 2.


CROSSREFS

Cf. A049038, A049066, A228543.
Sequence in context: A245000 A108397 A325995 * A208561 A152620 A152621
Adjacent sequences: A049033 A049034 A049035 * A049037 A049038 A049039


KEYWORD

nonn,more


AUTHOR

G. L. Honaker, Jr.


EXTENSIONS

More terms from Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), May 25 2000
Three more terms from Phil Carmody, Jul 23 2003


STATUS

approved



