0,3
Cf. A042720.
Sequence in context: A042387 A007666 A064177 this_sequence A048658 A001111 A116916
Adjacent sequences: A042718 A042719 A042720 this_sequence A042722 A042723 A042724
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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