%I A024396
%S A024396 1,3,34,294,4996,72612,1661680,34029840,981118240,25947526560,902963019520
%N A024396 s(1)*s(2)*...*s(n)*(1/s(1) - 1/s(2) + ... + c/s(n)), where c = (-1)^(n+1) 
               and s(k) = 3k-1 for k = 1,2,3,...
%Y A024396 Sequence in context: A042041 A141789 A121077 this_sequence A066265 A134491 
               A045727
%Y A024396 Adjacent sequences: A024393 A024394 A024395 this_sequence A024397 A024398 
               A024399
%K A024396 nonn
%O A024396 1,2
%A A024396 Clark Kimberling (ck6(AT)evansville.edu)