0,4
Cf. A005651.
Sequence in context: A034960 A134424 A017967 this_sequence A080043 A113022 A014986
Adjacent sequences: A076898 A076899 A076900 this_sequence A076902 A076903 A076904
nonn
Vladeta Jovovic (vladeta(AT)Eunet.yu), Nov 26 2002
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