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A066269 Indices of primes in A066268. 7

%I

%S 2,3,33

%N Indices of primes in A066268.

%C The 33rd term, prime 16268...99999, contains 759 digits.

%C Next term is bigger than 150. - _Stefan Steinerberger_, May 06 2007

%H C. Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_118.htm">Primorial product numbers</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Primorial.html">Primorial</a>

%t Select[Range[65], PrimeQ[Product[Product[Prime[i],{i,1,n}],{n,1,#}]-1]&] (* _Stefan Steinerberger_, Apr 12 2006 *)

%Y Cf. A066266, A066267, A066268, A002110, A006939, A006794.

%K nonn,hard,more,bref

%O 1,1

%A _Patrick De Geest_, Dec 16 2001

%E Offset changed from 0 to 1 by _Harry J. Smith_, Feb 08 2010

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Last modified October 20 17:47 EDT 2018. Contains 316395 sequences. (Running on oeis4.)