A019055 - OEIS

A019055

Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite PAU = Paulingite (K2,Ca,Na2)76[ Al152Si520O1344 ].

3, 7, 24, 128, 787, 5138, 33006, 213263, 1389812, 9108276, 60477825, 408066054, 2788906877, 19234774290, 133620110299

(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: A252785 A229039 A005642 * A300515 A041045 A041563

Adjacent sequences: A019052 A019053 A019054 * A019056 A019057 A019058

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(11)-a(16) from Sean A. Irvine, Mar 30 2019

STATUS

approved