A019181 - OEIS

A019181

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MOR = Mordenite Na8[ Al8Si40O96 ] . 24 H2O.

0, 1, 4, 2, 6, 26, 34, 96, 274, 562, 1494, 3780, 8740, 22468, 56646, 139246, 357097, 913238, 2330588, 6061420, 15770773, 41062072, 107857272, 283901367, 748503924, 1982727899, 5265788481, 14012697949, 37393943801

(list; graph; refs; listen; history; text; internal format)

OFFSET

3,3

REFERENCES

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

LINKS

Table of n, a(n) for n=3..31.

G. Thimm, Cycle sequences of crystal structures

CROSSREFS

Sequence in context: A331413 A019104 A019119 * A132996 A019182 A019105

Adjacent sequences: A019178 A019179 A019180 * A019182 A019183 A019184

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(21)-a(31) from Sean A. Irvine, Apr 12 2019

STATUS

approved