0,3
Cf. A042818.
Sequence in context: A062581 A077520 A100015 this_sequence A100443 A060415 A097929
Adjacent sequences: A042816 A042817 A042818 this_sequence A042820 A042821 A042822
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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