A008047 Coordination sequence T1 for Zeolite Code BIK.

1, 4, 12, 23, 43, 71, 97, 128, 179, 226, 264, 323, 404, 467, 518, 602, 719, 800, 851, 967, 1131, 1215, 1266, 1426, 1628, 1716, 1772, 1965, 2215, 2313, 2353, 2590, 2903, 2988, 3016, 3313, 3672, 3749, 3774, 4112, 4531, 4610, 4603, 4997, 5495, 5545, 5514, 5984

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.: (2*x^15 + x^14 - 12*x^12 - 31*x^11 - 67*x^10 - 101*x^9 - 128*x^8 - 132*x^7 - 120*x^6 - 89*x^5 - 59*x^4 - 29*x^3 - 14*x^2 - 4*x - 1) / ((x - 1)^3 * (x + 1) * (x^2 + 1)^3 * (x^2 + x + 1)^2). - Colin Barker, Apr 23 2014

Crossrefs

Sequence in context: A008242 A008189 A009905 * A008065 A321685 A156678

Adjacent sequences: A008044 A008045 A008046 * A008048 A008049 A008050

Keyword

nonn

Author

Ralf W. Grosse-Kunstleve

Status

approved