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A127366 as a simple table

na(n)
00
12
21
34
46
53
68
75
810
912
107
1114
129
1316
1411
1518
1620
1713
1822
1915
2024
2117
2226
2319
2428
2530
2621
2732
2823
2934
3025
3136
3227
3338
3429
3540
3642
3731
3844
3933
4046
4135
4248
4337
4450
4539
4652
4741
4854
4956
5043
5158
5245
5360
5447
5562
5649
5764
5851
5966
6053
6168
6255
6370
6472
6557
6674
6759
6876
6961
7078
7163
7280

[0,2,1,4,6,3,8,5,10,12,7,14,9,16,11,18,20,13,22,
 15,24,17,26,19,28,30,21,32,23,34,25,36,27,38,29,
 40,42,31,44,33,46,35,48,37,50,39,52,41,54,56,43,
 58,45,60,47,62,49,64,51,66,53,68,55,70,72,57,74,
 59,76,61,78,63,80]