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A008372
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Number of orbits on points that are at n steps from 0 in D_7 lattice.
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0
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1, 1, 4, 8, 17, 30, 54, 86, 139, 209, 313, 448, 638
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OFFSET
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0,3
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LINKS
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J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices VII: Coordination Sequences, Proc. Royal Soc. London, A453 (1997), 2369-2389 (pdf).
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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