OFFSET
0,2
REFERENCES
Gmelin Handbook of Inorg. and Organomet. Chem., 8th Ed., 1994, TYPIX search code (225) cF12.
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
R. W. Grosse-Kunstleve, Coordination Sequences and Encyclopedia of Integer Sequences
R. W. Grosse-Kunstleve, G. O. Brunner and N. J. A. Sloane, Algebraic Description of Coordination Sequences and Exact Topological Densities for Zeolites, Acta Cryst., A52 (1996), pp. 879-889.
Sean A. Irvine, Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane
Index entries for linear recurrences with constant coefficients, signature (0,1,2,0,-2,-1,0,1).
FORMULA
G.f.: -(6*x^9-5*x^8+8*x^7+29*x^6+82*x^5+88*x^4+68*x^3+35*x^2+8*x+1) / ((x-1)^3*(x+1)*(x^2+x+1)^2). - Colin Barker, Dec 12 2012
MATHEMATICA
CoefficientList[Series[-(6 x^9 - 5 x^8 + 8 x^7 + 29 x^6 + 82 x^5 + 88 x^4 + 68 x^3 + 35 x^2 + 8 x + 1)/((x - 1)^3 (x + 1) (x^2 + x + 1)^2), {x, 0, 50}], x] (* Vincenzo Librandi, Oct 15 2013 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved