0,1
Cf. A081289.
Sequence in context: A001420 A049339 A157100 this_sequence A007611 A098641 A056569
Adjacent sequences: A081290 A081291 A081292 this_sequence A081294 A081295 A081296
nonn
Antti Karttunen (Firstname.Surname(AT)iki.fi) Mar 17 2003
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