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A037772 Base 4 digits are, in order, the first n terms of the periodic sequence with initial period 3,1,0,2. 1
3, 13, 52, 210, 843, 3373, 13492, 53970, 215883, 863533, 3454132, 13816530, 55266123, 221064493, 884257972, 3537031890, 14148127563, 56592510253, 226370041012, 905480164050, 3621920656203, 14487682624813, 57950730499252 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Jonathan Frech, Table of n, a(n) for n = 1..1661

Index entries for linear recurrences with constant coefficients, signature (5,-5,5,-4).

FORMULA

G.f.: x*(3-2*x+2*x^2) / ( (x-1)*(4*x-1)*(x^2+1) ). - R. J. Mathar, May 02 2015

MATHEMATICA

Table[FromDigits[PadRight[{}, n, {3, 1, 0, 2}], 4], {n, 30}] (* or *) LinearRecurrence[{5, -5, 5, -4}, {3, 13, 52, 210}, 30] (* Harvey P. Dale, Dec 31 2016 *)

CROSSREFS

Cf. A007090 (numbers in base 4).

Sequence in context: A098619 A086608 A291182 * A037660 A122600 A063682

Adjacent sequences:  A037769 A037770 A037771 * A037773 A037774 A037775

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 27 14:10 EST 2020. Contains 338683 sequences. (Running on oeis4.)