0,2
Cf. A042050.
Sequence in context: A117263 A046855 A116985 this_sequence A133237 A099660 A094223
Adjacent sequences: A042048 A042049 A042050 this_sequence A042052 A042053 A042054
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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