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A004014
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Norms of vectors in f.c.c. lattice.
(Formerly M2347)
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0
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0, 3, 4, 8, 11, 12, 16, 19, 20, 24, 27, 32, 35, 36, 40, 43, 44, 48, 51, 52, 56, 59, 64, 67, 68, 72, 75, 76, 80, 83, 84, 88, 91, 96, 99, 100, 104, 107, 108, 115, 116, 120, 123, 128, 131
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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REFERENCES
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J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 116.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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Table of n, a(n) for n=0..44.
G. Nebe and N. J. A. Sloane, Home page for this lattice
Index entries for sequences related to f.c.c. lattice
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CROSSREFS
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Sequence in context: A222395 A222269 A047458 * A113294 A169691 A152412
Adjacent sequences: A004011 A004012 A004013 * A004015 A004016 A004017
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KEYWORD
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nonn,nice,easy,more
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AUTHOR
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N. J. A. Sloane.
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STATUS
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approved
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