A019249 - OEIS

A019249

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite VET = VPI-8 [ Si17O34 ].

0, 0, 4, 0, 8, 36, 48, 96, 376, 800, 1696, 4620, 11624, 27220, 69080, 173692, 433704, 1103512, 2831432, 7267700, 18846060, 49232088, 129266068, 341022112, 904681444, 2410249320, 6444014256, 17284501588, 46500202132

(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: A152990 A177900 A214202 * A260491 A013440 A013496

Adjacent sequences: A019246 A019247 A019248 * A019250 A019251 A019252

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 19 2019

STATUS

approved