2,1
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
G. Thimm, Cycle sequences of crystal structures
Sequence in context: A000717 A076020 * A018994 A117850 A144227 A174473
Adjacent sequences: A018961 A018962 A018963 * A018965 A018966 A018967
nonn
Georg Thimm (mgeorg(AT)ntu.edu.sg)