%I A027880
%S A027880 1,11,1573,2716571,56328099685,14016177372718235,41852067359921313500005,
%T A027880 1499635200191700040518673659035,644815685260091508353787979063721364325,
%U A027880 3327107302821620489265827570792988872583047378075
%N A027880 Product(12^i - 1), i=1..n.
%Y A027880 Sequence in context: A160264 A076168 A053884 this_sequence A028453 A024151 
               A114354
%Y A027880 Adjacent sequences: A027877 A027878 A027879 this_sequence A027881 A027882 
               A027883
%K A027880 nonn
%O A027880 0,2
%A A027880 N. J. A. Sloane (njas(AT)research.att.com).