A088030 - OEIS

%I #9 Dec 05 2013 19:56:32

%S 2,3,15,11,87,291,1296,3446,7991,91971,106031,1721591,10625871,

%T 53983491,327917591,1329773831

%N Smallest k such that k^3 -1 is a squarefree number with n prime divisors. a(n) = A088029(n)^(1/3).

%C a(17) > 4*10^9. - _Giovanni Resta_, Nov 06 2012

%e a(4) = 11, 11^3 -1 = 2*5*7*19.

%Y Cf. A088029.

%K more,nonn

%O 1,1

%A _Amarnath Murthy_, Sep 19 2003

%E More terms from _Ray Chandler_, Oct 04 2003

%E 2 more terms from Lambert Herrgesell (zero815(AT)googlemail.com), Feb 20 2008

%E a(14)-a(16) from _Giovanni Resta_, Nov 06 2012