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%I #6 Oct 27 2019 00:13:09
%S 1,9,66,466,3267,22875,160126,1120882,7846175,54923226,384462583,
%T 2691238083,18838666582,131870666077,923094662540,6461662637784,
%U 45231638464489,316621469251428,2216350284759997,15514451993319985
%N The first n digits of the juxtaposition of the base-7 numbers converted to decimal.
%e 1 (1); 12 (9); 123 (66); 1234 (466); 12345 (3267); 123456 (22875); ...
%Y Cf. A055143-A055150.
%K nonn,base
%O 1,2
%A _Patrick De Geest_, Apr 15 2000
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