differences between A031398 and A137352

Artur grafix at csl.pl
Thu Apr 10 08:56:57 CEST 2008


What is differences between A031398 
<http://www.research.att.com/%7Enjas/sequences/A031398> and A137352 
<http://www.research.att.com/%7Enjas/sequences/A137352> ???
Artur






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