A008048 Coordination sequence T2 for Zeolite Code BIK.

1, 4, 12, 26, 42, 66, 102, 140, 164, 216, 288, 334, 372, 458, 556, 620, 668, 776, 922, 998, 1034, 1190, 1384, 1448, 1494, 1696, 1920, 1998, 2042, 2270, 2562, 2640, 2652, 2948, 3300, 3346, 3364, 3718, 4104, 4160, 4164, 4548, 5022, 5066, 5018, 5490, 6036

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.: (3*x^14 - 4*x^13 - 6*x^12 - 40*x^11 - 58*x^10 - 106*x^9 - 121*x^8 - 136*x^7 - 117*x^6 - 90*x^5 - 58*x^4 - 32*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: A364373 A008176 A009903 * A301141 A008064 A008159

Adjacent sequences: A008045 A008046 A008047 * A008049 A008050 A008051

Keyword

nonn

Author

Ralf W. Grosse-Kunstleve

Status

approved