%I #6 Dec 05 2013 19:55:57
%S 2,22,352,23232,255552,23255232,232575575232,22327255222272,
%T 33575272735753772255232
%N a(1) = 2, a(n+1) = smallest multiple of a(n) using only prime digits (2,3,5,7).
%C Sequence is infinite - see Comments in A078233. - Fung Cheok Yin (cheokyin_restart(AT)yahoo.com.hk), Sep 02 2006
%Y Cf. A078233, A078234, A078235, A078236.
%K base,more,nonn
%O 1,1
%A _Amarnath Murthy_, Nov 23 2002
%E More terms from _Sascha Kurz_, Jan 06 2003
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