0,6
Equals 4 * A011795.
Sequence in context: A006000 A161216 A085622 this_sequence A102653 A102650 A011939
Adjacent sequences: A011937 A011938 A011939 this_sequence A011941 A011942 A011943
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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