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 + 9*x^2 + 68*x^20 + 82*x^15 + 73*x^17 + 68*x^19 + 67*x^21 + 64*x^22 + 59*x^23 + 51*x^24 + 40*x^25 + 28*x^26 + 17*x^27 + 9*x^28 + 4*x^29 + x^30 + 28*x^4 + 40*x^5 + 51*x^6 + 59*x^7 + 64*x^8 + 67*x^9 + 68*x^10 + 68*x^11 + 69*x^12 + 73*x^13 + 79*x^14 + 79*x^16 + 69*x^18 + 17*x^3) / (1-x^4) / (1-x^5) / (1-x^21). - Sean A. Irvine, Mar 13 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved