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A339020 as a simple table

na(n)
10
20
30
40
51
63
73
87
95
105
110
1211
139
147
1511
167
170
1811
1915
2011
2117
2219
230
2423
2521
2617
270
2819
290
3029
3127
3223
3329
3425
350
3635
370
3827
3935
4039
410
4241
4339
4439
4541
4637
470
4847
4945
5041
510
5243
530
5447
5551
5655
570
5853
590
6059
6157
6253
6359
6455
650
6665
670
6859
6965
7069
710
7271
7369
7465
7571
7671
770
7853

[0,0,0,0,1,3,3,7,5,5,0,11,9,7,11,7,0,11,15,11,17,
 19,0,23,21,17,0,19,0,29,27,23,29,25,0,35,0,27,35,
 39,0,41,39,39,41,37,0,47,45,41,0,43,0,47,51,55,0,
 53,0,59,57,53,59,55,0,65,0,59,65,69,0,71,69,65,71,
 71,0,53]