A019118 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite EPI = Epistilbite Ca3 [ Al6Si18O48 ] . 16 H2O.

0, 0, 6, 6, 4, 24, 45, 74, 210, 475, 1111, 3151, 7825, 19538, 52439, 134817, 343283, 893705, 2323619, 6035255, 15784498, 41487550, 109243888, 288414230, 764235804, 2028942492, 5395231115, 14383370796

Offset

3,3

Links

Table of n, a(n) for n=3..30.

Georg Thimm, Cycle sequences of crystal structures.

Georg Thimm, Personal website (archived).

Georg Thimm, A graph theoretical approach to the analysis, comparison, and enumeration of crystal structures, Dissertation, Goethe University Frankfurt, Germany, 2008.

Georg Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19(5-6) (1997), 422-424.

Crossrefs

Sequence in context: A209938 A165953 A045885 * A019126 A019206 A104225

Adjacent sequences: A019115 A019116 A019117 * A019119 A019120 A019121

Keyword

nonn,more

Author

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

Extensions

a(21)-a(30) from Sean A. Irvine, Apr 05 2019

Status

approved