0,1
Cf. A042125.
Sequence in context: A057103 A055669 A042122 this_sequence A042126 A157514 A100152
Adjacent sequences: A042121 A042122 A042123 this_sequence A042125 A042126 A042127
nonn,cofr,easy,less
N. J. A. Sloane (njas(AT)research.att.com).
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