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A231544 as a simple table

na(n)
12
22
32
44
56
64
77
820
920
107
1112
1257
13116
1457
1512
1621
17164
18589
19589
20164
2121
2237
23485
243001
255235
263001
27485
2837
2965
301424
3115644
3246122
3346122
3415644
351424
3665
37114
384169
3981179
40417298
41698721
42417298
4381179
444169
45114
46200
4712228
48420243
493763223
5010928292

[2,2,2,4,6,4,7,20,20,7,12,57,116,57,12,21,164,589,
 589,164,21,37,485,3001,5235,3001,485,37,65,1424,
 15644,46122,46122,15644,1424,65,114,4169,81179,
 417298,698721,417298,81179,4169,114,200,12228,
 420243,3763223,10928292]