0,2
Cf. A042138.
Sequence in context: A064794 A127005 A042553 this_sequence A118127 A100644 A013208
Adjacent sequences: A042136 A042137 A042138 this_sequence A042140 A042141 A042142
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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