0,2
Cf. A007318
Sequence in context: A032876 A032843 A023774 this_sequence A058075 A029783 A112736
Adjacent sequences: A152034 A152035 A152036 this_sequence A152038 A152039 A152040
nonn
Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 20 2008
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