0,3
Cf. A042682.
Sequence in context: A078733 A080920 A086338 this_sequence A047660 A073418 A012477
Adjacent sequences: A042680 A042681 A042682 this_sequence A042684 A042685 A042686
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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