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A317788 as a simple table

na(n)
12
21
33
46
54
68
712
89
95
1018
1117
1210
137
1419
1514
1616
1711
1820
1913
2024
2122
2215
2332
2436
2534
2625
2723
2837
2927
3021
3126
3264
3369
3440
3543
3629
3730
3835
3939
4044
4128
4242
4353
44129
4572
4638
4731
4881
4945
5050
5146
5247
5349
5474
5541
5654
5755
5851
5952
6057
6158
62128
6368
6470
65140
6677
6760

[2,1,3,6,4,8,12,9,5,18,17,10,7,19,14,16,11,20,13,
 24,22,15,32,36,34,25,23,37,27,21,26,64,69,40,43,
 29,30,35,39,44,28,42,53,129,72,38,31,81,45,50,46,
 47,49,74,41,54,55,51,52,57,58,128,68,70,140,77,60]