0,2
Cf. A000108.
Sequence in context: A137229 A027439 A108985 this_sequence A096124 A090539 A113478
Adjacent sequences: A014148 A014149 A014150 this_sequence A014152 A014153 A014154
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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