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%I #8 Oct 27 2019 00:13:24
%S 1,10,83,668,5349,42798,342391,2739129,21913032,175304257,1402434057,
%T 11219472457,89755779658,718046237265,5744369898123,45954959184985,
%U 367639673479884,2941117387839073,23528939102712589,188231512821700713
%N The first n digits of the juxtaposition of the base-8 numbers converted to decimal.
%e 1 (1); 12 (10); 123 (83); 1234 (668); 12345 (5349); 123456 (42798); ...
%t nn=30;With[{b8=Flatten[IntegerDigits[Range[nn],8]]},Table[ FromDigits[ Take[ b8,n],8],{n,nn}]] (* _Harvey P. Dale_, Jul 12 2014 *)
%Y Cf. A054634, A054636, A055062, A055063, A055143-A055150.
%K nonn,base
%O 1,2
%A _Patrick De Geest_, Apr 15 2000