0,3
I would very much like to find a formula for this - N. J. A. Sloane (njas(AT)research.att.com).
Sequence in context: A007808 A104989 A119906 this_sequence A154677 A121586 A024337
Adjacent sequences: A059723 A059724 A059725 this_sequence A059727 A059728 A059729
nonn
N. J. A. Sloane (njas(AT)research.att.com), Feb 09 2001
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