A019073 - OEIS

A019073

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BEA = Beta Nan [ AlnSi64-n O128 ] with n 7.

0, 2, 2, 4, 14, 30, 46, 141, 321, 648, 1577, 3589, 7833, 18573, 43299, 100786, 244719, 597693, 1490664, 3802784, 9791113, 25591883, 67512476, 178977181, 476556092, 1270559582, 3386841730, 9023105886, 24004008044

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

OFFSET

3,2

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: A261980 A153953 A019072 * A153959 A308847 A006205

Adjacent sequences: A019070 A019071 A019072 * A019074 A019075 A019076

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 02 2019

STATUS

approved