0,5
J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 120.
Sequence in context: A122787 A087020 A023930 this_sequence A037936 A121672 A033358
Adjacent sequences: A022069 A022070 A022071 this_sequence A022073 A022074 A022075
nonn
njas
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