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Metadromes: digits in base 4 are in strict ascending order.
0

%I #7 Jan 06 2014 15:06:21

%S 0,1,2,3,6,7,11,27

%N Metadromes: digits in base 4 are in strict ascending order.

%K nonn,base,fini,full,easy

%O 1,3

%A _Olivier GĂ©rard_