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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
OFFSET
0,1
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.: -(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) + a(3n+1) + a(3n+2) = A010851(n) = 12.
CROSSREFS
Sequence in context: A016618 A130789 A023529 * A389103 A385634 A387917
KEYWORD
nonn,easy
AUTHOR
Paul Curtz, Sep 14 2008
EXTENSIONS
Edited for readability by R. J. Mathar, Sep 11 2009
Offset corrected by Andrew Howroyd, Nov 09 2025
STATUS
approved