0,3
Cf. A042718.
Sequence in context: A090186 A139515 A038708 this_sequence A045717 A063626 A154297
Adjacent sequences: A042716 A042717 A042718 this_sequence A042720 A042721 A042722
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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