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A314315 as a simple table

na(n)
01
15
27
313
415
520
623
729
831
935
1044
1139
1251
1351
1453
1562
1665
1763
1877
1971
2084
2181
2291
2387
2495
25104
2699
27109
28117
29103
30134
31115
32129
33131
34135
35138
36147
37145
38153
39149
40174
41147
42177
43169
44167
45190
46183
47177
48205
49181

[1,5,7,13,15,20,23,29,31,35,44,39,51,51,53,62,65,
 63,77,71,84,81,91,87,95,104,99,109,117,103,134,
 115,129,131,135,138,147,145,153,149,174,147,177,
 169,167,190,183,177,205,181]