%I #12 Sep 08 2019 12:19:42
%S 3,12,93,6654,43053375,1853020231905216,
%T 3433683820292514337678080994497,
%U 11790184577738583171520872861415952349498504106613519190091458
%N Partial sums of A011764.
%H Seiichi Manyama, <a href="/A115245/b115245.txt">Table of n, a(n) for n = 0..11</a>
%t Accumulate[3^(2^Range[0,10])] (* _Harvey P. Dale_, Oct 14 2012 *)
%o (PARI) {a(n) = sum(k=0, n, 3^2^k)} \\ _Seiichi Manyama_, Sep 08 2019
%Y Cf. A011764, A060803.
%K nonn
%O 0,1
%A _Roger L. Bagula_, Jun 07 2008