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A019128
Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite EUO = EU-1 Nan [ AlnSi112-n O224 ].
0
0, 1, 4, 1, 10, 28, 48, 81, 254, 633, 1294, 3294, 8814, 20833, 52532, 138633, 352768, 906313, 2379672, 6221455, 16285472, 42966251, 113590300, 300405217, 796788406, 2117933593, 5634362070, 15011420863
OFFSET
3,3
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A178216 A307529 A019213 * A296419 A301390 A283433
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(20)-a(30) from Sean A. Irvine, Apr 07 2019
STATUS
approved