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A090883 as a simple table

na(n)
10
21
33
42
525
67
7343
83
918
10101
1114641
1214
13371293
142745
15240
164
1724137569
1837
19893871739
20402
219282
22234257
2378310985281
2427
251250
2611881377
2781
2821954
2914507145975869
30931
31819628286980801
325
331185954
341544804417
3544100
3674

[0,1,3,2,25,7,343,3,18,101,14641,14,371293,2745,
 240,4,24137569,37,893871739,402,9282,234257,
 78310985281,27,1250,11881377,81,21954,
 14507145975869,931,819628286980801,5,1185954,
 1544804417,44100,74]