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%I #11 Nov 14 2016 00:47:57
%S 5,7,43,37,311,31,55987,1297,46873,1111,72559411,1261,2612138803,5713,
%T 1406371,1679617,3385331888947,46441,121871948002099,1634221,
%U 1822428931,51828151,157946044610720563,1678321,731325737104301
%N Zsigmondy numbers for a = 6, b = 1: Zs(n, 6, 1) is the greatest divisor of 6^n - 1^n (A024062) that is relatively prime to 6^m - 1^m for all positive integers m < n.
%C By Zsigmondy's theorem, the n-th Zsigmondy number for bases a and b is not 1 except in the three cases (1) a = 2, b = 1, n = 1, (2) a = 2, b = 1, n = 6, (3) n = 2 and a+b is a power of 2.
%H K. Zsigmondy, <a href="http://dx.doi.org/10.1007/BF01692444">Zur Theorie der Potenzreste</a>, Monatsh. f. Math. 3 (1892) 265-284.
%Y Cf. A024062, A064078, A064079, A064080, A064081, A064083.
%K nonn
%O 1,1
%A _Jens Voß_, Sep 04 2001
%E More terms from _Vladeta Jovovic_, Sep 06 2001
%E Definition corrected by _Jerry Metzger_, Nov 04 2009
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