0,1
Cf. A137161, A137163.
Adjacent sequences: A137159 A137160 A137161 this_sequence A137163 A137164 A137165
Sequence in context: A087610 A099791 A028268 this_sequence A086769 A018753 A073217
easy,nonn
Paolo P. Lava & Giorgio Balzarotti (ppl(AT)spl.at), Jan 25 2008
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