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A168625 as a simple table

na(n)
01
11
21
31
49
51
61
717
817
91
101
1125
1241
1325
141
151
1633
1773
1873
1933
201
211
2241
23113
24153
25113
2641
271
281
2949
30161
31273
32273
33161
3449
351
361
3757
38217
39441
40553
41441
42217
4357
441
451
4665
47281
48665
491001
501001
51665
52281
5365
541
551
5673
57353
58953
591673
602009
611673
62953
63353
6473
651

[1,1,1,1,9,1,1,17,17,1,1,25,41,25,1,1,33,73,73,33,
 1,1,41,113,153,113,41,1,1,49,161,273,273,161,49,1,
 1,57,217,441,553,441,217,57,1,1,65,281,665,1001,
 1001,665,281,65,1,1,73,353,953,1673,2009,1673,953,
 353,73,1]