0,2
Cf. A042040.
Sequence in context: A074692 A003348 A086488 this_sequence A141789 A121077 A024396
Adjacent sequences: A042038 A042039 A042040 this_sequence A042042 A042043 A042044
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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