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A037590 Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,3. 0
1, 4, 19, 77, 308, 1235, 4941, 19764, 79059, 316237, 1264948, 5059795, 20239181, 80956724, 323826899, 1295307597, 5181230388, 20724921555, 82899686221, 331598744884, 1326394979539, 5305579918157, 21222319672628, 84889278690515 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..24.

Index entries for linear recurrences with constant coefficients, signature (4,0,1,-4).

FORMULA

G.f.: x*(1+3*x^2) / ( (x-1)*(4*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 27 2015

MATHEMATICA

Table[FromDigits[PadRight[{}, n, {1, 0, 3}], 4], {n, 30}] (* Harvey P. Dale, Apr 28 2018 *)

CROSSREFS

Sequence in context: A094734 A094578 A130132 * A037681 A156760 A320088

Adjacent sequences:  A037587 A037588 A037589 * A037591 A037592 A037593

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified October 14 04:44 EDT 2019. Contains 327995 sequences. (Running on oeis4.)