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%I #5 Oct 16 2019 01:20:27
%S 0,1,2,3,4,5,7,8,9,10,12,17,27
%N Decimal expansion of 7^n contains no pair of consecutive equal digits (probably finite).
%e 7^27 = 65712362363534280139543.
%Y Cf. A030703, A046265, A046273.
%K nonn,base
%O 0,3
%A _Patrick De Geest_, Sep 15 1999
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