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A308731 as a simple table

na(n)
12
213
344
4105
5224
6397
7660
81001
91464
102105
112866
123849
135030
146373
157946
169829
1712048
1814489
1917310
2020459
2123872
2227731
2331972
2436707
2542060
2647861
2754022
2860663
2967688
3075225
3183902
3293147
33103108
34113543
35125014
36136995
37149788
38163419
39177760
40192987
41209126
42225871
43243912
44262595
45282108

[2,13,44,105,224,397,660,1001,1464,2105,2866,3849,
 5030,6373,7946,9829,12048,14489,17310,20459,23872,
 27731,31972,36707,42060,47861,54022,60663,67688,
 75225,83902,93147,103108,113543,125014,136995,
 149788,163419,177760,192987,209126,225871,243912,
 262595,282108]