Triangle

[Gottfried Helms]

Did someone come across this triangle?

                          1
                     1    1    1
                1    3    4    3    1
           1    7   13   19   13    6   1
      1   15   40   85   96   75   35  10  1
  1  31  121  335  560  616  471  240  80  15  1
 ...


(not found in OEIS)

Apparently related to Stirling numbers (1'st or 2'nd kind)
       1
     1   1
   1   3   1
 1   7   6   1
 ...

Gottfried Helms





gh> From seqfan-owner at ext.jussieu.fr  Tue Apr 15 15:33:24 2008
gh> Date: Tue, 15 Apr 2008 14:58:26 +0200
gh> From: Gottfried Helms <helms at uni-kassel.de>
gh> To: Seqfan at ext.jussieu.fr
gh> Subject: Triangle
gh> 
gh> Did someone come across this triangle?
gh> 
gh>                           1
gh>                      1    1    1
gh>                 1    3    4    3    1
gh>            1    7   13   19   13    6   1
gh>       1   15   40   85   96   75   35  10  1
gh>   1  31  121  335  560  616  471  240  80  15  1
gh>  ...
gh> 
gh> 
gh> (not found in OEIS)
gh> 
gh> Apparently related to Stirling numbers (1'st or 2'nd kind)
gh>        1
gh>      1   1
gh>    1   3   1
gh>  1   7   6   1
gh>  ...
gh> 
gh> Gottfried Helms

The row sums might be in A000258.

Richard