OFFSET
1,2
COMMENTS
Cyclic with period 11. - Nathaniel Johnston, May 08 2011
REFERENCES
Clifford A. Pickover, A Passion for Mathematics, Wiley, 2005; see p. 62.
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,0,0,1).
FORMULA
G.f.: x*(15*x^10 +7*x^9 +21*x^8 +13*x^7 +5*x^6 +19*x^5 +11*x^4 +3*x^3 +17*x^2 +9*x +1) / (1-x^11). - Colin Barker, Sep 12 2014
MATHEMATICA
NestList[Mod[#+8, 22]&, 1, 80] (* Harvey P. Dale, Jul 22 2013 *)
Rest[CoefficientList[Series[x*(15*x^10 + 7*x^9 + 21*x^8 + 13*x^7 + 5*x^6 + 19*x^5 + 11*x^4 + 3*x^3 + 17*x^2 + 9*x + 1)/(1 - x^11), {x, 0, 50}], x]] (* G. C. Greubel, Dec 30 2017 *)
PROG
(PARI) Vec(-x*(15*x^10 +7*x^9 +21*x^8 +13*x^7 +5*x^6 +19*x^5 +11*x^4 +3*x^3 +17*x^2 +9*x +1)/(x^11 -1) + O(x^100)) \\ Colin Barker, Sep 12 2014
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Apr 20 2008
STATUS
approved