A145924 Last digit of A145923(n).

9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3, 9, 3, 5, 5, 3

Offset

0,1

Comments

The numbers also populate the 5th row of A107449.

Links

Table of n, a(n) for n=0..84.

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

Formula

a(n) = A145923(n) mod 10.

Period length 5: a(n+5) = a(n).

G.f.: (9+3x+5x^2+5x^3+3x^4)/((1-x)(1+x+x^2+x^3+x^4)). - R. J. Mathar, Dec 08 2008

Mathematica

PadRight[{}, 100, {9, 3, 5, 5, 3}] (* Harvey P. Dale, Jul 05 2012 *)

Prog

(PARI) a(n)=[9, 3, 5, 5, 3][n%5+1]; \\ Jinyuan Wang, Mar 23 2020

Crossrefs

Cf. A010879 (last digit), A145923.

Sequence in context: A346932 A371857 A371604 * A324995 A200007 A153618

Adjacent sequences: A145921 A145922 A145923 * A145925 A145926 A145927

Keyword

nonn,base,less

Author

Paul Curtz, Oct 25 2008

Extensions

Edited by R. J. Mathar, Dec 08 2008

Status

approved