OFFSET
0,2
REFERENCES
W. M. Meier, D. H. Olson and Ch. Baerlocher, Atlas of Zeolite Structure Types, 4th Ed., Elsevier, 1996
LINKS
R. W. Grosse-Kunstleve, 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
International Zeolite Association, Database of Zeolite Structures
FORMULA
G.f.: (1 + 4*x + 11*x^2 + 22*x^3 + 37*x^4 + 54*x^5 + 73*x^6 + 89*x^7 + 99*x^8 + 108*x^9 + 112*x^10 + 111*x^11 + 111*x^12 + 109*x^13 + 106*x^14 + 109*x^15 + 111*x^16 + 111*x^17 + 112*x^18 + 108*x^19 + 99*x^20 + 89*x^21 + 73*x^22 + 54*x^23 + 37*x^24 + 22*x^25 + 11*x^26 + 4*x^27 + x^28) / (1-x^4) / (1-x^6) / (1-x^18). - Sean A. Irvine, Mar 13 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved