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A391972 as a simple table

na(n)
11
22
31
43
51
64
78
813
91
107
111
128
1316
1425
1535
1646
1758
1871
191
2015
2130
2246
2363
2481
25100
26120
27141
28163
291
3024
3148
3273
331
3427
3554
3682
37111
38141
39172
40204
41237
42271
431
4436
4572
46109
471
4839
4978
50118
51159
52201
53244
54288
55333
56379
571
5848
5996
60145
61195
62246
63298
64351
65405
66460
67516
68573
69631
701

[1,2,1,3,1,4,8,13,1,7,1,8,16,25,35,46,58,71,1,15,
 30,46,63,81,100,120,141,163,1,24,48,73,1,27,54,82,
 111,141,172,204,237,271,1,36,72,109,1,39,78,118,
 159,201,244,288,333,379,1,48,96,145,195,246,298,
 351,405,460,516,573,631,1]