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A194507 as a simple table

na(n)
11
22
33
44
56
65
78
810
97
1012
119
1214
1318
1411
1515
1616
1713
1820
1924
2022
2130
2221
2317
2426
2528
2619
2736
2827
2925
3042
3123
3232
3334
3440
3533
3638
3748
3829
3935
4044
4131
4239
4360
4454
4550
4646
4745
4852
4966
5037
5156
5258
5351
5441
5570
5672
5743
5862
5978
6084
6164
6257
6349
6490
6547
6668
6755
6863
6980

[1,2,3,4,6,5,8,10,7,12,9,14,18,11,15,16,13,20,24,
 22,30,21,17,26,28,19,36,27,25,42,23,32,34,40,33,
 38,48,29,35,44,31,39,60,54,50,46,45,52,66,37,56,
 58,51,41,70,72,43,62,78,84,64,57,49,90,47,68,55,
 63,80]