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A301021 Coordination sequence T1 for Zeolite Code EZT. 1
1, 4, 10, 19, 31, 49, 72, 97, 124, 155, 194, 236, 278, 324, 375, 435, 496, 556, 621, 690, 771, 851, 928, 1014, 1103, 1204, 1302, 1396, 1503, 1611, 1731, 1849, 1961, 2088, 2216, 2354, 2490, 2621, 2769, 2917, 3073, 3228, 3379, 3546, 3712, 3887, 4061 (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 + 31*x^4 + 47*x^5 + 89*x^9 + 10*x^2 + 19*x^3 + 64*x^6 + 77*x^7 + 85*x^8 + 87*x^10 + 77*x^11 + 63*x^12 + 48*x^13 + 31*x^14 + 15*x^15 - 15*x^17 - 31*x^18 - 48*x^19 - 63*x^20 - 77*x^21 - 87*x^22 - 85*x^24 - 19*x^29 - 4*x^31 - 77*x^25 - 47*x^27 - 31*x^28 - 10*x^30 - x^32 - 89*x^23 - 64*x^26) / (1 - x^5)^2 / (1 - x^8) / (1 - x^14).

CROSSREFS

Sequence in context: A037040 A007077 A301202 * A009895 A027371 A301022

Adjacent sequences:  A301018 A301019 A301020 * A301022 A301023 A301024

KEYWORD

nonn

AUTHOR

Sean A. Irvine, Mar 17 2018

STATUS

approved

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Last modified June 15 02:19 EDT 2021. Contains 345042 sequences. (Running on oeis4.)