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A146881 as a simple table

na(n)
01
11
21
31
48
51
61
711
811
91
101
116
1212
136
141
151
169
1716
1816
199
201
211
2212
2323
2422
2523
2612
271
281
2915
3025
3143
3243
3325
3415
351
361
3710
3830
3958
4076
4158
4230
4310
441
451
4613
4738
4886
49132
50132
5186
5238
5313
541
551
5616
5749
58122
59216
60254
61216
62122
6349
6416
651

[1,1,1,1,8,1,1,11,11,1,1,6,12,6,1,1,9,16,16,9,1,1,
 12,23,22,23,12,1,1,15,25,43,43,25,15,1,1,10,30,58,
 76,58,30,10,1,1,13,38,86,132,132,86,38,13,1,1,16,
 49,122,216,254,216,122,49,16,1]