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A308541 as a simple table

na(n)
11
22
36
43
59
67
711
84
913
1010
1115
128
1316
1412
1517
165
1718
1814
1919
2020
2126
2221
2361
2422
2538
2623
2728
2824
2967
3025
3173
3227
3330
3429
3542
3631
3778
3839
3932
4034
4181
4233
4384
4435
4540
4662
4787
4836
4951
5044
5143
5237
5389
5447
5545
5641
5774
5868
5992
6046
6195
6297
6354
6452
6548
6649
6799

[1,2,6,3,9,7,11,4,13,10,15,8,16,12,17,5,18,14,19,
 20,26,21,61,22,38,23,28,24,67,25,73,27,30,29,42,
 31,78,39,32,34,81,33,84,35,40,62,87,36,51,44,43,
 37,89,47,45,41,74,68,92,46,95,97,54,52,48,49,99]