0,1
Cf. A042639.
Sequence in context: A142653 A144731 A027724 this_sequence A146224 A142066 A091631
Adjacent sequences: A042635 A042636 A042637 this_sequence A042639 A042640 A042641
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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