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%I #12 Oct 10 2019 03:56:21
%S 2,12,124,624,624,642,4062,4062,4128,4128,23041,23041,23041,23041,
%T 144032,144032,144032,144032,144032,144032,144032,1201804,1201804,
%U 1201804,1276048,1276048,1276048,1276048,1276048,1276048,8020604
%N Smallest k for which k, 2k, ... n*k all contain the digit 2.
%C a(288) > 5*10^11. - _Giovanni Resta_, Apr 27 2017
%H Giovanni Resta, <a href="/A039933/b039933.txt">Table of n, a(n) for n = 1..287</a>
%e a(3)=624 since 624, 1248, and 1872 all contain a 2.
%Y Cf. A039932, A039934, A039935, A039936, A039937, A039938, A039939, A039940.
%K base,nonn
%O 1,1
%A _Erich Friedman_
%E More terms from _Patrick De Geest_, Oct 15 1999
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