0,2
Cf. A041848.
Sequence in context: A159696 A049713 A188129 * A041124 A048695 A153873
Adjacent sequences: A041846 A041847 A041848 * A041850 A041851 A041852
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).