0,12
A column of triangle A011857.
Sequence in context: A162583 A058809 A140088 this_sequence A004404 A001788 A068711
Adjacent sequences: A011852 A011853 A011854 this_sequence A011856 A011857 A011858
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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