0,1
Cf. A042671.
Sequence in context: A140754 A047078 A042672 this_sequence A129813 A060229 A139507
Adjacent sequences: A042667 A042668 A042669 this_sequence A042671 A042672 A042673
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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