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A145924
Last digit of A145923(n).
0
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.
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
KEYWORD
nonn,base,less
AUTHOR
Paul Curtz, Oct 25 2008
EXTENSIONS
Edited by R. J. Mathar, Dec 08 2008
STATUS
approved