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A146898 as a simple table

na(n)
01
11
21
31
44
51
61
711
811
91
101
118
1212
138
141
151
1617
1720
1820
1917
201
211
2212
2347
2440
2547
2612
271
281
2923
3065
31107
32107
3365
3423
351
361
3716
3856
39112
40140
41112
4256
4316
441
451
4629
4772
48168
49252
50252
51168
5272
5329
541
551
5620
57137
58240
59420
60504
61420
62240
63137
6420
651

[1,1,1,1,4,1,1,11,11,1,1,8,12,8,1,1,17,20,20,17,1,
 1,12,47,40,47,12,1,1,23,65,107,107,65,23,1,1,16,
 56,112,140,112,56,16,1,1,29,72,168,252,252,168,72,
 29,1,1,20,137,240,420,504,420,240,137,20,1]