0,2
Cf. A042884.
Sequence in context: A051949 A026902 A026755 this_sequence A042085 A136211 A041036
Adjacent sequences: A042882 A042883 A042884 this_sequence A042886 A042887 A042888
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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