0,2
Cf. A042566.
Sequence in context: A165975 A051590 A091302 this_sequence A142112 A053976 A034312
Adjacent sequences: A042564 A042565 A042566 this_sequence A042568 A042569 A042570
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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