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A009865
Coordination sequence T2 for Zeolite Code AFX.
1
1, 4, 9, 17, 29, 45, 64, 85, 110, 141, 178, 218, 256, 295, 343, 400, 457, 509, 565, 633, 707, 778, 847, 924, 1013, 1106, 1194, 1279, 1373, 1480, 1590, 1694, 1796, 1908, 2032, 2158, 2279, 2400, 2533, 2678, 2821, 2956, 3094, 3247, 3409, 3566, 3718, 3876
OFFSET
0,2
REFERENCES
W. M. Meier, D. H. Olson and Ch. Baerlocher, Atlas of Zeolite Structure Types, 4th Ed., Elsevier, 1996.
FORMULA
G.f.: (1 + x) * (1 + x + x^2) * (1 + 2*x^2 + 2*x^3 + 2*x^4 + 3*x^5 + 3*x^6 + 2*x^7 + 4*x^8 + 3*x^9 + 4*x^10 + 2*x^11 + 3*x^12 + 3*x^13 + 2*x^14 + 2*x^15 + 2*x^16 + x^18) / ((1 - x)^3 * (1 + x^2) * (1 + x + x^2 + x^3 + x^4) * (1 - x + x^2 - x^3 + x^4 - x^5 + x^6) * (1 + x + x^2 + x^3 + x^4 + x^5 + x^6)). - Colin Barker, Dec 20 2015
CROSSREFS
Sequence in context: A057316 A008066 A008026 * A008001 A008123 A008027
KEYWORD
nonn
STATUS
approved