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A009890
Coordination sequence T1 for Zeolite Code RTE.
1
1, 4, 10, 19, 33, 56, 81, 105, 136, 175, 219, 262, 307, 363, 425, 485, 548, 622, 699, 776, 859, 948, 1042, 1137, 1236, 1344, 1456, 1566, 1681, 1808, 1937, 2065, 2198, 2339, 2486, 2633, 2782, 2940, 3105, 3268, 3435, 3612, 3791, 3971, 4157, 4351, 4548
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 + 3*x + 8*x^2 + 14*x^3 + 25*x^4 + 38*x^5 + 49*x^6 + 57*x^7 + 59*x^8 + 57*x^9 + 51*x^10 + 39*x^11 + 26*x^12 + 15*x^13 + 7*x^14 + x^15 - x^17 + x^18 + x^19) / ((1 - x)^3 * (1 + x^2) * (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 19 2015
CROSSREFS
Sequence in context: A301129 A140260 A019452 * A301182 A301194 A015616
KEYWORD
nonn
STATUS
approved