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A221987 as a simple table

na(n)
01
11
21
31
44
51
61
711
811
91
101
1126
1262
1326
141
151
1657
17274
18274
1957
201
211
22120
231063
242024
251063
26120
271
281
29247
303805
3112411
3212411
333805
34247
351
361
37502
3812916
3967882
40113414
4167882
4212916
43502
441
451
461013
4742284
48343700
49891930
50891930
51343700
5242284
531013
541

[1,1,1,1,4,1,1,11,11,1,1,26,62,26,1,1,57,274,274,
 57,1,1,120,1063,2024,1063,120,1,1,247,3805,12411,
 12411,3805,247,1,1,502,12916,67882,113414,67882,
 12916,502,1,1,1013,42284,343700,891930,891930,
 343700,42284,1013,1]