0,5
J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 140.
Adjacent sequences: A005948 A005949 A005950 this_sequence A005952 A005953 A005954
Sequence in context: A004227 A098241 A058828 this_sequence A030030 A064257 A023908
nonn
njas
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