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A301023 Coordination sequence T3 for Zeolite Code EZT. 1
1, 4, 10, 20, 32, 48, 71, 98, 126, 155, 192, 237, 280, 323, 374, 435, 499, 556, 617, 693, 773, 851, 926, 1010, 1110, 1206, 1299, 1395, 1499, 1618, 1733, 1845, 1961, 2084, 2223, 2358, 2485, 2618, 2765, 2927, 3079, 3220, 3373, 3545, 3725, 3890, 4050 (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 + 32*x^4 + 46*x^5 + 87*x^9 + 10*x^2 + 20*x^3 + 63*x^6 + 78*x^7 + 85*x^8 + 87*x^10 + 79*x^11 + 62*x^12 + 45*x^13 + 32*x^14 + 17*x^15 - 17*x^17 - 32*x^18 - 45*x^19 - 62*x^20 - 79*x^21 - 87*x^22 - 85*x^24 - 20*x^29 - 4*x^31 - 78*x^25 - 46*x^27 - 32*x^28 - 10*x^30 - x^32 - 87*x^23 - 63*x^26) / (1 - x^5)^2 / (1 - x^8) / (1 - x^14).

CROSSREFS

Sequence in context: A008094 A301286 A008083 * A008050 A008039 A024986

Adjacent sequences:  A301020 A301021 A301022 * A301024 A301025 A301026

KEYWORD

nonn

AUTHOR

Sean A. Irvine, Mar 17 2018

STATUS

approved

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Last modified November 28 19:19 EST 2021. Contains 349415 sequences. (Running on oeis4.)