1,1
Cf. A027762.
Sequence in context: A042837 A162173 A166306 this_sequence A162665 A130474 A147033
Adjacent sequences: A027758 A027759 A027760 this_sequence A027762 A027763 A027764
nonn,frac
N. J. A. Sloane (njas(AT)research.att.com).
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