duplicate hunting, pt. 21

[Andrew Plewe]

http://www.aerith.net/comet/catalog/0001P/index.html
might help.  The meaning of negative numbers needs to be
considered, since our BC/AD numbering system avoids 0.

Brendan.


* Tanya Khovanova <tanyakh at TanyaKhovanova.com> [070531 11:39]:
> These two sequences should be the same:
> 
> A072235  	 	 Years of recorded observations of Comet Halley.  	 
> 
> -240, -164, -87, -12, 66, 141, 218, 295, 374, 451, 530, 607, 684, 760, 837, 912, 989, 1066, 1145, 1222, 1301, 1378, 1456, 1531, 1607, 1682, 1759, 1835, 1910, 1986
> 
> A100748  	 	 Years of recorded appearances of Halley's Comet 
> 
> -240, -164, -86, -11, 66, 141, 218, 295, 347, 451, 530, 607, 684, 760, 837, 912, 989, 1066, 1145, 1222, 1301, 1378, 1456, 1531, 1607, 1682, 1759, 1835, 1910, 1985
> 
> 
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