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A238959 as a simple table

na(n)
00
11
21
32
42
54
66
72
85
96
1010
1116
123
137
149
1514
1617
1726
1840
193
208
2111
2212
2318
2423
2527
2636
2742
2864
2996
304
3110
3214
3316
3422
3530
3632
3738
3846
3958
4068
4188
42102
43152
44224
454
4611
4716
4819
4920
5026
5136
5241
5348
5452
5556
5674
5780
5893
59108
60112
61140
62162
63208
64240
65352
66512

[0,1,1,2,2,4,6,2,5,6,10,16,3,7,9,14,17,26,40,3,8,
 11,12,18,23,27,36,42,64,96,4,10,14,16,22,30,32,38,
 46,58,68,88,102,152,224,4,11,16,19,20,26,36,41,48,
 52,56,74,80,93,108,112,140,162,208,240,352,512]