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A175142 as a simple table

na(n)
13
27
36
415
513
618
712
824
931
1018
1120
1232
1336
1424
1531
1642
1740
1856
1930
2048
2154
2248
2338
2456
2542
2644
2778
2872
2948
3057
3193
3272
3398
3454
3572
3690
3760
3862
39104
40127
4184
42144
4368
4496
45144
4672
4774
48124
49140
5096
5180
52121
53126
5484
55108
56132
57120
58180
5990
60112
61168
62144
63120
6498
65156

[3,7,6,15,13,18,12,24,31,18,20,32,36,24,31,42,40,
 56,30,48,54,48,38,56,42,44,78,72,48,57,93,72,98,
 54,72,90,60,62,104,127,84,144,68,96,144,72,74,124,
 140,96,80,121,126,84,108,132,120,180,90,112,168,
 144,120,98,156]