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A168464 as a simple table

na(n)
00
11
21
35
42
55
61
75
85
91
1031
1129
1213
1329
1431
151
1631
1714
1814
1931
201
2141
2243
23106
2497
25106
2643
2741
281
2941
3022
31101
32101
3322
3441
351
3631
3729
38106
39109
4097
41109
42106
4329
4431
451
4631
4714
48113
49101
50101
51113
5214
5331
541
5561
5671
57158
58161
591271
60199
611271
62161
63158
6471
6561
661
6761
6838

[0,1,1,5,2,5,1,5,5,1,31,29,13,29,31,1,31,14,14,31,
 1,41,43,106,97,106,43,41,1,41,22,101,101,22,41,1,
 31,29,106,109,97,109,106,29,31,1,31,14,113,101,
 101,113,14,31,1,61,71,158,161,1271,199,1271,161,
 158,71,61,1,61,38]