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A009930 Coordination sequence for MgCu2, Cu position. 1
1, 12, 50, 110, 216, 356, 528, 704, 968, 1230, 1514, 1838, 2276, 2562, 3074, 3540, 3998, 4490, 5244, 5570, 6374, 7052, 7662, 8300, 9438, 9740, 10862, 11754, 12512, 13280, 14852, 15060, 16544, 17658, 18542, 19418, 21492, 21542, 23414, 24752 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

Gmelin Handbook of Inorg. and Organomet. Chem., 8th Ed., 1994, TYPIX search code (227) cF24

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

From Colin Barker, Feb 13 2018: (Start)

G.f.: (1 + 15*x + 90*x^2 + 309*x^3 + 752*x^4 + 1411*x^5 + 2129*x^6 + 2610*x^7 + 2601*x^8 + 2095*x^9 + 1340*x^10 + 643*x^11 + 210*x^12 + 31*x^13 - 7*x^14 - 4*x^15) / ((1 - x)^3*(1 + x)^3*(1 + x^2)*(1 + x + x^2)^3).

a(n) = -3*a(n-1) - 4*a(n-2) - a(n-3) + 6*a(n-4) + 11*a(n-5) + 9*a(n-6) - 9*a(n-8) - 11*a(n-9) - 6*a(n-10) + a(n-11) + 4*a(n-12) + 3*a(n-13) + a(n-14) for n>15.

(End)

CROSSREFS

Sequence in context: A009937 A009932 A009933 * A066644 A009934 A009927

Adjacent sequences:  A009927 A009928 A009929 * A009931 A009932 A009933

KEYWORD

nonn

AUTHOR

Ralf W. Grosse-Kunstleve

STATUS

approved

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Last modified September 26 05:28 EDT 2022. Contains 356986 sequences. (Running on oeis4.)