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A286870 as a simple table

na(n)
12
23
33
45
55
65
79
811
911
109
1115
1225
1343
1425
1515
1626
1751
18133
19133
2051
2126
2244
23113
24463
25647
26463
27113
2844
2976
30235
311493
322945
332945
341493
35235
3676
37130
38521
395011
4014217
4122049
4214217
435011
44521
45130
46223
471107
4816659
4965627
50147672
51147672
5265627
5316659
541107
55223

[2,3,3,5,5,5,9,11,11,9,15,25,43,25,15,26,51,133,
 133,51,26,44,113,463,647,463,113,44,76,235,1493,
 2945,2945,1493,235,76,130,521,5011,14217,22049,
 14217,5011,521,130,223,1107,16659,65627,147672,
 147672,65627,16659,1107,223]