1,1
Cf. A001672.
Sequence in context: A099670 A006587 A091482 this_sequence A122220 A004824 A132912
Adjacent sequences: A121242 A121243 A121244 this_sequence A121246 A121247 A121248
nonn,less
Mohammad K. Azarian (azarian(AT)evansville.edu), Aug 22 2006
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