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A008093
Coordination sequence T1 for Zeolite Code ERI and OFF.
1
1, 4, 9, 17, 30, 50, 75, 98, 118, 144, 185, 238, 288, 326, 360, 408, 479, 560, 631, 687, 743, 817, 910, 1009, 1101, 1185, 1271, 1367, 1474, 1588, 1705, 1822, 1936, 2050, 2172, 2307, 2451, 2593, 2728, 2863, 3010, 3172, 3337, 3494, 3647, 3810, 3990, 4177
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 + 2*x^2 + 4*x^3 + 6*x^4 + 8*x^5 + 8*x^6 + 6*x^7 + 8*x^8 + 8*x^9 + 6*x^10 + 4*x^11 + 2*x^12 + x^13 + x^14) / ((1 - x)^3 * (1 - x + x^2) * (1 + x + x^2 + x^3 + x^4) * (1 + x + x^2 + x^3 + x^4 + x^5 + x^6)). - Colin Barker, Dec 18 2015
CROSSREFS
Sequence in context: A301024 A038401 A008046 * A027374 A265048 A266334
KEYWORD
nonn
STATUS
approved