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A065316 Largest prime divisor of n-th primorial - (n+1)-st prime. 0


%S 23,199,2297,30013,12451,9699667,79139,122069683,9241993,77184383,

%T 211941187,72280449346243,73629553,142226610221,131076443530861861,

%U 382046844818915214929,1348764323657,1822793973448088839487

%N Largest prime divisor of n-th primorial - (n+1)-st prime.

%H R. Mestrovic, <a href="http://arxiv.org/abs/1202.3670">Euclid's theorem on the infinitude of primes: a historical survey of its proofs (300 BC--2012) and another new proof</a>, arXiv preprint arXiv:1202.3670, 2012 - From N. J. A. Sloane, Jun 13 2012

%F a(n)=A006530[A002110(n)-A000040(n+1)]

%e n=3, 3rd primorial=30, 4t prime=7. difference=23, a(3)=23.

%Y Cf. A002110, A000040, A006530, A006530, A057713, A002584, A002585, A051342 A065314-A065317.

%K nonn

%O 3,1

%A _Labos Elemer_, Oct 29 2001

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Last modified July 24 03:01 EDT 2019. Contains 325290 sequences. (Running on oeis4.)