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%I #4 Dec 05 2013 19:57:04
%S 1,1,22,4488,89795904,17959182236734464,
%T 3704081336326483792653013812237312,
%U 75204075616325580032652098612091128173449533874414107751925419899904
%N a(1) =1, a(n) = k* concatenation of a(1), a(2), ...a(n-1), where k is the number of digits in the concatenation.
%e a(2) = 1*1 = 1, a(3) = 11*2 = 22, a(4) = 1122*4 = 4488.
%K base,easy,nonn
%O 1,3
%A _Amarnath Murthy_, Aug 14 2005
%E More terms from _Joshua Zucker_, May 03 2006
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