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A236970 as a simple table

na(n)
10
20
31
42
52
63
75
86
97
1013
1116
1219
1329
1438
1549
1672
1784
18108
19155
20195
21234
22331
23410
24501
25672
26824
271006
281341
291621
301981
312583
323111
333740
344846
355819
366957
378787
3810582
3912606
4015840
4118762
4222386
4327851
4432934
4538824
4647961
4756633
4866577
4981168
5095612

[0,0,1,2,2,3,5,6,7,13,16,19,29,38,49,72,84,108,
 155,195,234,331,410,501,672,824,1006,1341,1621,
 1981,2583,3111,3740,4846,5819,6957,8787,10582,
 12606,15840,18762,22386,27851,32934,38824,47961,
 56633,66577,81168,95612]