1,3
Cf. A003432, A119003, A119004, A118998.
Sequence in context: A137155 A014227 A064769 this_sequence A047021 A047031 A056766
Adjacent sequences: A118999 A119000 A119001 this_sequence A119003 A119004 A119005
nonn,more
Giovanni Resta (g.resta(AT)iit.cnr.it), May 08 2006
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