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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
OFFSET
2,1
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A080581 A086397 A229941 * A018993 A217759 A160615
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