0,8
J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 120.
Sequence in context: A057372 A057442 A141817 this_sequence A119894 A138667 A114407
Adjacent sequences: A008432 A008433 A008434 this_sequence A008436 A008437 A008438
nonn,easy
N. J. A. Sloane (njas(AT)research.att.com).
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