0,2
Cf. A042136.
Sequence in context: A084445 A029733 A153686 this_sequence A067976 A154316 A051084
Adjacent sequences: A042134 A042135 A042136 this_sequence A042138 A042139 A042140
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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