A008258 Coordination sequence T1 for Moganite.

1, 4, 10, 24, 40, 64, 90, 120, 160, 200, 244, 300, 354, 412, 484, 552, 624, 712, 794, 880, 984, 1080, 1180, 1300, 1410, 1524, 1660, 1784, 1912, 2064, 2202, 2344, 2512, 2664, 2820, 3004, 3170, 3340, 3540, 3720, 3904, 4120, 4314, 4512, 4744, 4952, 5164, 5412

Offset

0,2

References

Inorganic Crystal Structure Database: Collection Code 67669.

Links

Sean A. Irvine, Table of n, a(n) for n = 0..1000

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

Formula

a(3*m) = 22*m^2+2, a(3*m+1) = 22*m^2+14*m+4, a(3*m+2) = 22*m^2+30*m+12, m>0. - N. J. A. Sloane

G.f.: (1+3*x+6*x^2+12*x^3+10*x^4+12*x^5-x^6+x^7-2*x^8+2*x^9) / ((1-x)^3*(1+x+x^2)^2). - Colin Barker, Dec 23 2015

Crossrefs

Sequence in context: A102549 A277789 A274019 * A008251 A174934 A083168

Adjacent sequences: A008255 A008256 A008257 * A008259 A008260 A008261

Keyword

nonn,easy

Author

Ralf W. Grosse-Kunstleve

Status

approved