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A250206 as a simple table

na(n)
12
25
38
47
57
617
718
815
926
107
113
1217
1319
1419
1526
1631
1738
1853
1928
207
2119
223
2328
2417
2557
2619
2780
2819
2914
30107
31115
3263
33118
3465
3518
3653
3718
3869
3919
407
4151
4219
4319
443
4526
4663
4753
4817
4918
5057
51134
5219
53338
54161
553
5631
5728
5841
5953
60107
61264
62115
6319
64127
6599
66161
67143
6865
6928
7099
7111
7255

[2,5,8,7,7,17,18,15,26,7,3,17,19,19,26,31,38,53,
 28,7,19,3,28,17,57,19,80,19,14,107,115,63,118,65,
 18,53,18,69,19,7,51,19,19,3,26,63,53,17,18,57,134,
 19,338,161,3,31,28,41,53,107,264,115,19,127,99,
 161,143,65,28,99,11,55]