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A001370 as a simple table

na(n)
01
12
24
38
47
55
610
711
813
98
107
1114
1219
1320
1422
1526
1625
1714
1819
1929
2031
2126
2225
2341
2437
2529
2640
2735
2843
2941
3037
3147
3258
3362
3461
3559
3664
3756
3867
3971
4061
4150
4246
4356
4458
4562
4670
4768
4873
4965
5076
5180
5279
5377
5482
5592
5685
5780
5870
5977

[1,2,4,8,7,5,10,11,13,8,7,14,19,20,22,26,25,14,19,
 29,31,26,25,41,37,29,40,35,43,41,37,47,58,62,61,
 59,64,56,67,71,61,50,46,56,58,62,70,68,73,65,76,
 80,79,77,82,92,85,80,70,77]