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A142069
Period 9: repeat 3, 7, 2, 6, 1, 5, 0, 4, 8.
2
3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5, 0, 4, 8, 3, 7, 2, 6, 1, 5
OFFSET
1,1
COMMENTS
The periodic part contains all digits from 0 to 8 and is a permutation of A141726.
Also the continued fractions of (13475 + sqrt(212576401))/8952 and the decimal expansion of 414016720/111111111.
FORMULA
a(n) = A141694(n) mod 9.
a(n) = a(n-9).
G.f.: -x*(3 + 7*x + 2*x^2 + 6*x^3 + x^4 + 5*x^5 + 4*x^7 + 8*x^8)/((x-1)*(1 + x + x^2)*(x^6 + x^3 + 1)).
a(3n+1) + a(3n+2) + a(3n+3) = A010851(n).
CROSSREFS
Sequence in context: A016618 A130789 A023529 * A246201 A279341 A254155
KEYWORD
nonn,easy
AUTHOR
Paul Curtz, Sep 14 2008
EXTENSIONS
Edited for readability by R. J. Mathar, Sep 11 2009
STATUS
approved