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Search: id:A008530
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| A008530 |
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Coordination sequence for 4-dimensional primitive di-isohexagonal orthogonal lattice. |
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+0
2
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| 1, 12, 60, 180, 408, 780, 1332, 2100, 3120, 4428, 6060, 8052, 10440, 13260, 16548, 20340, 24672, 29580, 35100, 41268, 48120, 55692, 64020, 73140, 83088, 93900, 105612, 118260, 131880, 146508
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Coordination sequence for 4-dimensional cyclotomic lattice Z[zeta_12].
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REFERENCES
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M. O'Keeffe, Coordination sequences for lattices, Zeit. f. Krist., 210 (1995), 905-908.
M. Beck and S. Hosten, Cyclotomic polytopes and growth series of cyclotomic lattices, arXiv math.CO/0508136.
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MAPLE
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[ seq( 6*k^3+6*k, k=0..40) ]; # (this is for n>0)
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CROSSREFS
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Adjacent sequences: A008527 A008528 A008529 this_sequence A008531 A008532 A008533
Sequence in context: A158443 A153792 A000141 this_sequence A033486 A112415 A061624
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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