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A006684 as a simple table

na(n)
00
10
21
33
49
524
662
7156
8387
9951
102323
115652
1213716
1333228
1480405
15194415
16469845
171135092
182741626
196620928
2015987663
2138603019
2293204647
23225030024
24543293352
251311663096
263166694569
277645173627
2818457238241
2944559967920
30107577688310
31259716176580

[0,0,1,3,9,24,62,156,387,951,2323,5652,13716,
 33228,80405,194415,469845,1135092,2741626,6620928,
 15987663,38603019,93204647,225030024,543293352,
 1311663096,3166694569,7645173627,18457238241,
 44559967920,107577688310,259716176580]