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%I #6 Sep 08 2022 08:46:08
%S 6,36,780,14196,4017156,65514540,17050729020,273715645476,
%T 70274600998836,288161745774346860,4611068345031103956,
%U 18889015647572689857420,4835666805462139528038300,77370924198368872644117636,19807014039751725440882699796
%N 4^p - 3^p - 1, where p is prime.
%C For p>3, all terms are divisible by 13.
%H Vincenzo Librandi, <a href="/A244841/b244841.txt">Table of n, a(n) for n = 1..250</a>
%t Table[(4^Prime[n] - 3^Prime[n] - 1), {n, 1, 30}
%o (Magma) [4^p-3^p-1: p in PrimesUpTo(60)]
%Y Cf. A242083, A242084.
%K nonn
%O 1,1
%A _Vincenzo Librandi_, Jul 07 2014
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