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A152236 as a simple table

na(n)
01
11
21
31
44
51
61
77
87
91
101
118
1212
138
141
151
1611
1720
1820
1911
201
211
2212
2331
2440
2531
2612
271
281
2915
3043
3171
3271
3343
3415
351
361
3716
3856
39112
40140
41112
4256
4316
441
451
4619
4772
48168
49252
50252
51168
5272
5319
541
551
5620
5791
58240
59420
60504
61420
62240
6391
6420
651

[1,1,1,1,4,1,1,7,7,1,1,8,12,8,1,1,11,20,20,11,1,1,
 12,31,40,31,12,1,1,15,43,71,71,43,15,1,1,16,56,
 112,140,112,56,16,1,1,19,72,168,252,252,168,72,19,
 1,1,20,91,240,420,504,420,240,91,20,1]