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A008030
Coordination sequence T2 for Zeolite Code AFY.
1
1, 4, 9, 16, 23, 34, 57, 82, 98, 115, 141, 178, 224, 259, 282, 322, 377, 430, 486, 535, 578, 643, 717, 781, 851, 919, 984, 1072, 1160, 1231, 1320, 1417, 1502, 1600, 1698, 1789, 1907, 2023, 2115, 2227, 2348, 2461, 2598, 2728, 2831, 2962, 3108, 3241, 3392
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)^3 * (1+4*x^2-x^3+7*x^4+x^5+9*x^6+x^7+7*x^8-x^9+4*x^10+x^12) / ((1-x)^3 * (1-x+x^2) * (1+x^2) * (1+x+x^2)^2 * (1+x+x^2+x^3+x^4)). - Colin Barker, Dec 20 2015
CROSSREFS
Sequence in context: A027874 A009850 A009853 * A168086 A176238 A139588
KEYWORD
nonn
STATUS
approved