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A300691 as a simple table

na(n)
11
21
32
45
52
63
71
89
93
104
113
122
1310
144
155
165
176
184
1911
205
216
229
239
2411
255
2613
276
287
291
3011
3110
3212
337
3417
357
368
375
382
3913
4011
4113
428
4318
448
459
463
477
484
4917
5013
5119
529
5319
549
5510
5611
576
5810
598
6018
6117
6222
6310
6420
6510
6611
675
6813
6911
7013
719
7219
7318
7423
7511
7621

[1,1,2,5,2,3,1,9,3,4,3,2,10,4,5,5,6,4,11,5,6,9,9,
 11,5,13,6,7,1,11,10,12,7,17,7,8,5,2,13,11,13,8,18,
 8,9,3,7,4,17,13,19,9,19,9,10,11,6,10,8,18,17,22,
 10,20,10,11,5,13,11,13,9,19,18,23,11,21]