0,1
Cf. A061153-A061158.
Adjacent sequences: A061153 A061154 A061155 this_sequence A061157 A061158 A061159
Sequence in context: A022091 A135405 A006784 this_sequence A109049 A037018 A003873
nonn
Patrick De Geest (pdg(AT)worldofnumbers.com), Apr 15 2001.
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