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A121211 as a simple table

na(n)
10
21
31
42
52
63
73
86
97
1011
1114
1221
1323
1441
1550
1680
1794
18156
19189
20310
21365
22615
23748
241237
251459
262488
273023
285059
295994
3010296
3112511
3221149
3325100
3443451
3552870

[0,1,1,2,2,3,3,6,7,11,14,21,23,41,50,80,94,156,
 189,310,365,615,748,1237,1459,2488,3023,5059,5994,
 10296,12511,21149,25100,43451,52870]