|
%I #8 Oct 19 2017 03:14:22
%S 131,167,215,252,393,559,616,646,819,860,875,888,1323,1364,1393,1435,
%T 1523,1598,1669,1734,1891,1924,1951,2236,2576,2761,2848,2887,3138,
%U 3221,4455,4540,4592,4812,4818,5002,5165,5188,5227,5237,5306,5314,5453,5540,5621,5702
%N Numbers k such that k*primorial(2473)-1 is prime.
%C The "2473" sequence has rather many terms below 2473.
%F a(n) ~ c * n log n with c = 0.07162.... [_Charles R Greathouse IV_, Dec 28 2011]
%o (PARI) N=prod(n=1,366,prime(n));for(k=1,1e5,if(ispseudoprime(k*N-1),print1(k", "))) \\ _Charles R Greathouse IV_, Dec 28 2011
%Y Cf. A002110, A087730, A087832.
%K nonn
%O 1,1
%A _Pierre CAMI_, Oct 07 2003
%E Edited by _Don Reble_, Nov 09 2005
%E a(25)-a(46) from _Charles R Greathouse IV_, Dec 28 2011
|
