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A173992 as a simple table

na(n)
01
11
23
36
415
534
683
7198
8488
91202
103015
117608
1219432
1349994
14129779
15339176
16892600
172362634
186288156
1916816232
2045170466
21121812152
22329679487
23895171236
242437885058
256657311202
2618224979884
2750006899724
28137502724754

[1,1,3,6,15,34,83,198,488,1202,3015,7608,19432,
 49994,129779,339176,892600,2362634,6288156,
 16816232,45170466,121812152,329679487,895171236,
 2437885058,6657311202,18224979884,50006899724,
 137502724754]