0,5
Cf. A005651.
Sequence in context: A123333 A012258 A012134 this_sequence A131590 A041433 A058014
Adjacent sequences: A088943 A088944 A088945 this_sequence A088947 A088948 A088949
nonn
Paul D. Hanna (pauldhanna(AT)juno.com), Oct 25 2003
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