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Search: id:A072153
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| A072153 |
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Coordination sequence for VPl-5 structure with respect to node (Y) where 18-gon, hexagon and square meet. |
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+0
2
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OFFSET
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0,2
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COMMENT
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The terms shown were computed by hand and could be wrong! There are two 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.
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REFERENCES
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M. E. Davis, Ordered porous materials for emerging applications, Nature, 417 (Jun 20 2002), 813-821 (gives structure).
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LINKS
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N. J. A. Sloane, VPl-5 structure, after Davis
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CROSSREFS
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Cf. A072149-A072154.
Sequence in context: A077859 A123572 A076819 this_sequence A082218 A111612 A122818
Adjacent sequences: A072150 A072151 A072152 this_sequence A072154 A072155 A072156
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KEYWORD
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nonn,easy,more
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AUTHOR
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njas, Jun 28 2002
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