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A194428 as a simple table

na(n)
15
25
35
47
517
65
716
822
95
1016
1120
128
138
1416
1518
1620
1722
186
1916
208
2116
2218
2320
2423
2534
2616
276
2827
2911
3016
3118
3222
3321
3432
3516
369
3723
3825
399
409
4128
4216
4320
4439
4519
4630
4716
4821
4921
5021
5123
5223
5335
547
5526
5637
5716
5818
5937
609
6128
6228
6316
6443
6514
6619
6719
6834
6921
7021
7133
7224

[5,5,5,7,17,5,16,22,5,16,20,8,8,16,18,20,22,6,16,
 8,16,18,20,23,34,16,6,27,11,16,18,22,21,32,16,9,
 23,25,9,9,28,16,20,39,19,30,16,21,21,21,23,23,35,
 7,26,37,16,18,37,9,28,28,16,43,14,19,19,34,21,21,
 33,24]