0,2
Cf. A042134.
Sequence in context: A102965 A100931 A152180 this_sequence A003009 A037122 A118840
Adjacent sequences: A042132 A042133 A042134 this_sequence A042136 A042137 A042138
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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