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A070318 as a simple table

na(n)
10
21
31
43
53
66
76
87
97
108
118
1216
1316
1416
1516
1616
1716
1821
1921
2022
2122
2222
2322
2436
2536
2636
2736
2836
2936
3042
3142
3242
3342
3442
3542
3655
3755
3855
3955
4055
4155
4255
4355
4455
4555
4655
4755
4876
4976
5076
5176
5276
5376
5476
5576
5676
5776
5876
5976
60108
61108
62108
63108
64108
65108
66108
67108
68108
69108

[0,1,1,3,3,6,6,7,7,8,8,16,16,16,16,16,16,21,21,22,
 22,22,22,36,36,36,36,36,36,42,42,42,42,42,42,55,
 55,55,55,55,55,55,55,55,55,55,55,76,76,76,76,76,
 76,76,76,76,76,76,76,108,108,108,108,108,108,108,
 108,108,108]