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A303657 as a simple table

na(n)
10
21
310
411
512
613
72
83
920
1023
1121
1222
1314
1424
154
1625
1734
185
1930
2015
2131
2216
2317
246
257
2626
2727
2828
2929
308
319
3218
3319
3438
3539
3632
3733
3835
3936
4037
4143
4247
4340
4441
4542
4644
4745
4846
4948
5049
5154
5259
5350
5451
5552
5653
5755
5856
5957
6058
6165
6268
6360
6461
6562
6663
6764
6866

[0,1,10,11,12,13,2,3,20,23,21,22,14,24,4,25,34,5,
 30,15,31,16,17,6,7,26,27,28,29,8,9,18,19,38,39,32,
 33,35,36,37,43,47,40,41,42,44,45,46,48,49,54,59,
 50,51,52,53,55,56,57,58,65,68,60,61,62,63,64,66]