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A037524 Base 7 digits are, in order, the first n terms of the periodic sequence with initial period 2,1,0. 1

%I

%S 2,15,105,737,5160,36120,252842,1769895,12389265,86724857,607074000,

%T 4249518000,29746626002,208226382015,1457584674105,10203092718737,

%U 71421649031160,499951543218120,3499660802526842

%N Base 7 digits are, in order, the first n terms of the periodic sequence with initial period 2,1,0.

%H Vincenzo Librandi, <a href="/A037524/b037524.txt">Table of n, a(n) for n = 1..1000</a>

%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (7,0,1,-7).

%F G.f.: x*(x+2) / ((x-1)*(7*x-1)*(x^2+x+1)). [_Colin Barker_, Jan 12 2013]

%t CoefficientList[Series[(x + 2)/((x - 1) (7 x - 1) (x^2 + x + 1)), {x, 0, 30}], x] (* _Vincenzo Librandi_, Oct 21 2013 *)

%K nonn,base,easy

%O 1,1

%A _Clark Kimberling_

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Last modified November 22 01:14 EST 2019. Contains 329383 sequences. (Running on oeis4.)