0,1
Cf. A042051.
Sequence in context: A043197 A043977 A042048 this_sequence A139857 A139900 A065017
Adjacent sequences: A042047 A042048 A042049 this_sequence A042051 A042052 A042053
nonn,cofr,easy,less
N. J. A. Sloane (njas(AT)research.att.com).
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