0,2
Cf. A004652, A035106, A035107.
Sequence in context: A020684 A093410 A090498 this_sequence A141224 A064423 A022130
Adjacent sequences: A035101 A035102 A035103 this_sequence A035105 A035106 A035107
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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