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A072150 Coordination sequence for AlPO_4-11 structure with respect to node (Y) where decagon, hexagon and square meet and is adjacent to node of type (X). +0
3
1, 3, 5, 8, 10, 13, 17, 18, 20, 25, 26, 28, 33, 33, 36, 42, 41 (list; graph; listen)
OFFSET

0,2

COMMENT

The terms shown were computed by hand and could be wrong! There are three types of nodes in this structure.

The coordination sequence with respect to a particular node gives the number of nodes that can be reached from that node in n steps along edges.

REFERENCES

M. E. Davis, Ordered porous materials for emerging applications, Nature, 417 (Jun 20 2002), 813-821 (gives structure).

LINKS

N. J. A. Sloane, AlPO_4-11 structure, after Davis

CROSSREFS

Cf. A072149-A072154.

Adjacent sequences: A072147 A072148 A072149 this_sequence A072151 A072152 A072153

Sequence in context: A004937 A060606 A050504 this_sequence A091309 A027922 A051611

KEYWORD

nonn,easy,more

AUTHOR

njas, Jun 28 2002

EXTENSIONS

More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 29 2007

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Last modified October 12 13:44 EDT 2008. Contains 144830 sequences.


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