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A114515 as a simple table

na(n)
00
10
21
33
412
545
6171
7651
82488
99540
1036690
11141482
12546864
132118207
148219967
1531952115
16124389552
17484908408
181892657934
197395597354
2028928182440
21113260606074
22443827115886
231740592240638
246831289801872
2526829201570600

[0,0,1,3,12,45,171,651,2488,9540,36690,141482,
 546864,2118207,8219967,31952115,124389552,
 484908408,1892657934,7395597354,28928182440,
 113260606074,443827115886,1740592240638,
 6831289801872,26829201570600]