A018960 - OEIS

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A018960

Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AFR = SAPO-40 [ Si7Al29P28O128 ] . 4 TPA . OH.

2, 9, 43, 185, 1068, 5908, 33711, 201908, 1252537 (list; graph; refs; listen; history; internal format)

	OFFSET	`2,1`
	REFERENCES	`G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.`
	LINKS	`G. Thimm, Cycle sequences of crystal structures`
	CROSSREFS	`Sequence in context: A092239 A132847 A121365 * A002310 A055728 A006795` `Adjacent sequences: A018957 A018958 A018959 * A018961 A018962 A018963`
	KEYWORD	`nonn`
	AUTHOR	`Georg Thimm (mgeorg(AT)ntu.edu.sg)`

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Last modified February 15 10:28 EST 2012. Contains 205763 sequences.