1,3
Cf. A036229.
Adjacent sequences: A068083 A068084 A068085 this_sequence A068087 A068088 A068089
Sequence in context: A003588 A115695 A030024 this_sequence A115691 A066432 A136387
nonn
Robert G. Wilson v (rgwv(AT)rgwv.com), May 04 2002
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