0,2
Cf. A000108.
Sequence in context: A142588 A151471 A077691 this_sequence A147629 A135438 A015502
Adjacent sequences: A014228 A014229 A014230 this_sequence A014232 A014233 A014234
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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