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A301022 Coordination sequence T2 for Zeolite Code EZT. 1
1, 4, 10, 19, 31, 51, 73, 93, 123, 157, 195, 236, 274, 325, 379, 434, 495, 553, 622, 697, 768, 848, 929, 1012, 1108, 1202, 1299, 1397, 1498, 1620, 1734, 1842, 1960, 2086, 2225, 2354, 2482, 2622, 2769, 2924, 3072, 3220, 3378, 3547, 3721, 3888, 4055 (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 + 49*x^5 + 91*x^9 + 10*x^2 + 19*x^3 + 65*x^6 + 73*x^7 + 84*x^8 + 84*x^10 + 75*x^11 + 67*x^12 + 49*x^13 + 30*x^14 + 18*x^15 + x^16 - 16*x^17 - 30*x^18 - 47*x^19 - 68*x^20 - 77*x^21 - 83*x^22 - 87*x^24 - 15*x^29 - 4*x^31 - 73*x^25 - 2*x^34 - 53*x^27 - 30*x^28 - 10*x^30 + x^32 - 93*x^23 - 64*x^26) / (1 - x^5)^2 / (1 - x^8) / (1 - x^14).

CROSSREFS

Sequence in context: A301021 A009895 A027371 * A301119 A098576 A063773

Adjacent sequences:  A301019 A301020 A301021 * A301023 A301024 A301025

KEYWORD

nonn

AUTHOR

Sean A. Irvine, Mar 17 2018

STATUS

approved

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Last modified June 20 15:06 EDT 2021. Contains 345165 sequences. (Running on oeis4.)