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A037867 a(n)=(number of digits <=3)-(number of digits >3) in base 8 representation of n. 0

%I

%S 1,1,1,-1,-1,-1,-1,2,2,2,2,0,0,0,0,2,2,2,2,0,0,0,0,2,2,2,2,0,0,0,0,0,

%T 0,0,0,-2,-2,-2,-2,0,0,0,0,-2,-2,-2,-2,0,0,0,0,-2,-2,-2,-2,0,0,0,0,-2,

%U -2,-2,-2,3,3,3,3,1,1,1,1,3,3,3,3,1,1,1,1,3

%N a(n)=(number of digits <=3)-(number of digits >3) in base 8 representation of n.

%t d8[n_]:=Module[{idn8=IntegerDigits[n,8],lt4},lt4=Count[idn8,_?(#<4&)];2lt4-Length[idn8]]; Array[d8,80] (* _Harvey P. Dale_, Oct 22 2011 *)

%K sign,base

%O 0,8

%A _Clark Kimberling_

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Last modified September 19 14:43 EDT 2019. Contains 327198 sequences. (Running on oeis4.)