|
%I #6 Mar 07 2013 07:55:51
%S 2,1,3,1,4,3,5,3,6,3,7,3,8,7,8,6,9,3,10,3,12,9
%N Table(n,2) read by rows giving k and j such that Mersenne-prime(k) - Mersenne-prime(j) + 1 is prime.
%e (2^3-1)-(2^2-1)+1 = 5 = Mersenne-prime(2)-Mersenne-prime(1)+1 k=2 j=1 for n=1
%e (2^5-1)-(2^2-1)+1 = 29 = Mersenne-prime(3)-Mersenne-prime(1)+1 k=3 j=1 for n=2
%e (2^7-1)-(2^5-1)+1 = 97 = Mersenne-prime(4)-Mersenne-prime(3)+1 k=4 j=3 for n=3
%e and 5,29,97 are primes
%K more,nonn,tabf
%O 1,1
%A _Pierre CAMI_, Oct 16 2004
|
