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A108477 as a simple table

na(n)
01
11
21
31
413
51
61
741
841
91
101
1185
12321
1385
141
151
16145
171289
181289
19145
201
211
22221
233649
248989
253649
26221
271
281
29313
308361
3140081
3240081
338361
34313
351
361
37421
3816641
39134245
40265729
41134245
4216641
43421
441
451
46545
4729961
48369305
491256465
501256465
51369305

[1,1,1,1,13,1,1,41,41,1,1,85,321,85,1,1,145,1289,
 1289,145,1,1,221,3649,8989,3649,221,1,1,313,8361,
 40081,40081,8361,313,1,1,421,16641,134245,265729,
 134245,16641,421,1,1,545,29961,369305,1256465,
 1256465,369305]