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A354293 as a simple table

na(n)
13
24
3-1
423
521
6-1
7188
865
91010
102231
11-1
12-1
131326
14389
151092
1613196
171450
18-1
1940466
2085553
21665
22-1
235139193
24333
25-1
26408241
27-1
283072
296702
301393
315832
32935
331071
3477421
35292187
36775383
37493135
384185
391784560
4010632
417935
42743003
4313418
4464499
451746798
4612176
47152551

[3,4,-1,23,21,-1,188,65,1010,2231,-1,-1,1326,389,
 1092,13196,1450,-1,40466,85553,665,-1,5139193,333,
 -1,408241,-1,3072,6702,1393,5832,935,1071,77421,
 292187,775383,493135,4185,1784560,10632,7935,
 743003,13418,64499,1746798,12176,152551]