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A019018 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite GME = Gmelinite (Na2,Ca)4 [ Al8Si16O48 ] . 24 H2O. 0
3, 7, 42, 190, 884, 5565, 34840, 205806, 1247875, 7958423, 52883120, 359233719, 2459686110, 16915593735, 116848978672 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

REFERENCES

G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.

LINKS

Table of n, a(n) for n=2..16.

G. Thimm, Cycle sequences of crystal structures

CROSSREFS

Sequence in context: A080581 A086397 A229941 * A018993 A217759 A160615

Adjacent sequences:  A019015 A019016 A019017 * A019019 A019020 A019021

KEYWORD

nonn,more

AUTHOR

Georg Thimm (mgeorg(AT)ntu.edu.sg)

EXTENSIONS

a(11)-a(16) from Sean A. Irvine, Mar 21 2019

STATUS

approved

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Last modified November 26 03:20 EST 2020. Contains 338632 sequences. (Running on oeis4.)