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a(1) = 1, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10*a(n-1).
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%I #2 Dec 05 2013 19:55:59

%S 1,11,121,1089,11979,107811,1185921,10673289,117406179,1056655611,

%T 11623211721,104608905489,1150697960379,10356281643411,

%U 113919098077521,1025271882697689,11277990709674579,101501916387071211

%N a(1) = 1, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10*a(n-1).

%Y Cf. A080446, A080447, A080448, A080449, A080450, A080451, A080452, A080453.

%K base,nonn

%O 1,2

%A _Amarnath Murthy_, Feb 23 2003

%E More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003