0,3
Cf. A042474.
Sequence in context: A013646 A059800 A094714 this_sequence A123993 A101821 A121475
Adjacent sequences: A042472 A042473 A042474 this_sequence A042476 A042477 A042478
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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