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A303595 as a simple table

na(n)
11
22
33
44
55
66
78
89
910
107
1111
1213
1314
1415
1512
1618
1716
1817
1921
2020
2122
2223
2342
2443
2525
2619
2724
2826
2927
3044
3128
3231
3332
3433
3538
3630
3737
3834
3935
4036
4140
4239
4329
4446
4547
4648
4741
4849
4951
5052
5153
5250
5345
5454
5559
5658
5760
5857
5961
6062
6156
6266
6364
6465
6563
6667
6771
6869
6970
7068
7174
7273

[1,2,3,4,5,6,8,9,10,7,11,13,14,15,12,18,16,17,21,
 20,22,23,42,43,25,19,24,26,27,44,28,31,32,33,38,
 30,37,34,35,36,40,39,29,46,47,48,41,49,51,52,53,
 50,45,54,59,58,60,57,61,62,56,66,64,65,63,67,71,
 69,70,68,74,73]