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A301024 Coordination sequence T4 for Zeolite Code EZT. 1
1, 4, 9, 17, 30, 49, 73, 97, 120, 154, 199, 237, 273, 322, 381, 439, 488, 549, 627, 698, 768, 843, 930, 1022, 1102, 1196, 1300, 1402, 1506, 1608, 1729, 1849, 1961, 2088, 2217, 2354, 2487, 2622, 2775, 2917, 3065, 3224, 3386, 3552, 3706, 3880, 4066 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

R. W. Grosse-Kunstleve, Table of n, a(n) for n = 0..1000

Sean A. Irvine, Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane

International Zeolite Association, Database of Zeolite Structures

FORMULA

G.f.: (1 + 4*x + 30*x^4 + 47*x^5 + 90*x^9 + 9*x^2 + 17*x^3 + 65*x^6 + 79*x^7 + 85*x^8 + 93*x^10 + 78*x^11 + 58*x^12 + 52*x^13 + 37*x^14 + 7*x^15 - 8*x^16 - 11*x^17 - 29*x^18 - 52*x^19 - 64*x^20 - 74*x^21 - 83*x^22 - 93*x^24 - 13*x^29 - 4*x^31 - 79*x^25 - 51*x^27 - 38*x^28 - x^30 - x^32 - 2*x^36 + 4*x^33 - 4*x^35 - 90*x^23 - 59*x^26) / (1 - x^5)^2 / (1 - x^8) / (1 - x^14).

CROSSREFS

Sequence in context: A008127 A008082 A008143 * A038401 A008046 A008093

Adjacent sequences:  A301021 A301022 A301023 * A301025 A301026 A301027

KEYWORD

nonn

AUTHOR

Sean A. Irvine, Mar 17 2018

STATUS

approved

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Last modified December 5 09:34 EST 2021. Contains 349543 sequences. (Running on oeis4.)