0,1
Cf. A041625.
Sequence in context: A066854 A059138 A117735 this_sequence A034725 A047929 A118864
Adjacent sequences: A041621 A041622 A041623 this_sequence A041625 A041626 A041627
nonn,cofr,easy
N. J. A. Sloane (njas(AT)research.att.com).
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