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A368608 as a simple table

na(n)
12
21
34
45
52
61
76
89
98
104
112
121
138
1413
1514
1612
176
184
192
201
2110
2217
2320
2420
2516
269
276
284
292
301
3112
3221
3326
3428
3526
3621
3712
389
396
404
412
421
4314
4425
4532
4636
4736
4833
4926
5016
5112
529
536
544
552
561
5716
5829
5938
6044
6146
6245
6340
6432
6520
6616
6712
689
696
704
712
721
7318
7433

[2,1,4,5,2,1,6,9,8,4,2,1,8,13,14,12,6,4,2,1,10,17,
 20,20,16,9,6,4,2,1,12,21,26,28,26,21,12,9,6,4,2,1,
 14,25,32,36,36,33,26,16,12,9,6,4,2,1,16,29,38,44,
 46,45,40,32,20,16,12,9,6,4,2,1,18,33]