A009928 Coordination sequence for Cr3Si, Cr position.

1, 14, 50, 114, 214, 350, 510, 710, 930, 1186, 1474, 1798, 2142, 2526, 2934, 3382, 3858, 4362, 4890, 5470, 6070, 6694, 7350, 8054, 8778, 9530, 10306, 11134, 11990, 12862, 13758, 14718, 15698, 16690, 17714, 18798, 19902, 21022, 22166, 23374

Offset

0,2

References

Gmelin Handbook of Inorg. and Organomet. Chem., 8th Ed., 1994, TYPIX search code (223) cP8

Links

Sean A. Irvine, 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

Formula

G.f.: -(4*x^13 - 4*x^12 - 11*x^10 + 33*x^9 + 57*x^8 + 124*x^7 + 146*x^6 + 150*x^5 + 122*x^4 + 76*x^3 + 37*x^2 + 13*x + 1) / ((x - 1)^3 * (x + 1) * (x^2 + 1)^2 * (x^2 + x + 1)). - Colin Barker, Nov 06 2014

Crossrefs

Sequence in context: A044497 A005914 A009960 * A050441 A225921 A350850

Adjacent sequences: A009925 A009926 A009927 * A009929 A009930 A009931

Keyword

nonn

Author

Ralf W. Grosse-Kunstleve

Status

approved