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%I #2 Mar 30 2012 18:40:49
%S 123,210,234,321,345,432,456,543,654
%N Three-digit numbers with sequential digits that can be displayed on a 12-hour digital clock.
%C Devised by Roger Nauheimer of Clearwater, Florida.
%D Marilyn Vos Savant, Ask Marilyn, syndicated, Dec 21, 2008.
%K fini,full,nonn,base
%O 1,1
%A _Jonathan Vos Post_, Dec 21 2008
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