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A019020 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for a certain zeolite [ which? ]. 0
2, 6, 36, 150, 938, 5968, 36762, 235074, 1553854, 10377280, 70137652, 479982854, 3319376006, 23157283294, 162789085594 (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: A120824 A127564 A130874 * A236692 A323945 A101609

Adjacent sequences:  A019017 A019018 A019019 * A019021 A019022 A019023

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(11)-a(16) from Sean A. Irvine, Mar 22 2019

STATUS

approved

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Last modified January 23 07:07 EST 2020. Contains 331168 sequences. (Running on oeis4.)