%I A101658
%S A101658 1,2,8,16,160,640,6400,12800,25600,256000,1024000,4096000,16384000,
%T A101658 163840000,327680000,655360000,2621440000,5242880000,10485760000,
%U A101658 104857600000,419430400000,1677721600000,3355443200000,13421772800000
%N A101658 a(n)=Product{k=0..n, 1+3^A101650(k)}/2.
%Y A101658 Sequence in context: A046161 A092978 A101059 this_sequence A006573 A009662 
               A162218
%Y A101658 Adjacent sequences: A101655 A101656 A101657 this_sequence A101659 A101660 
               A101661
%K A101658 easy,nonn
%O A101658 0,2
%A A101658 Paul Barry (pbarry(AT)wit.ie), Dec 10 2004