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A203996 as a simple table

na(n)
12
23
33
44
56
64
75
88
98
105
116
1210
1312
1410
156
167
1712
1815
1915
2012
217
228
2314
2418
2520
2618
2714
288
299
3016
3121
3224
3324
3421
3516
369
3710
3818
3924
4028
4130
4228
4324
4418
4510
4611
4720
4827
4932
5035
5135
5232
5327
5420
5511
5612
5722
5830
5936
6040
6142
6240
6336
6430
6522
6612
6713
6824
6933
7040
7145
7248

[2,3,3,4,6,4,5,8,8,5,6,10,12,10,6,7,12,15,15,12,7,
 8,14,18,20,18,14,8,9,16,21,24,24,21,16,9,10,18,24,
 28,30,28,24,18,10,11,20,27,32,35,35,32,27,20,11,
 12,22,30,36,40,42,40,36,30,22,12,13,24,33,40,45,
 48]