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A208054 as a simple table

na(n)
11
21
31
42
52
62
75
815
915
105
1115
12203
13716
14203
1515
1652
174140
1883440
1983440
204140
2152
22203
23115975
2418171918
25112073062
2618171918
27115975
28203
29877
304213597
316423127757
32346212384169
33346212384169
346423127757
354213597
36877
374140
38190899322

[1,1,1,2,2,2,5,15,15,5,15,203,716,203,15,52,4140,
 83440,83440,4140,52,203,115975,18171918,112073062,
 18171918,115975,203,877,4213597,6423127757,
 346212384169,346212384169,6423127757,4213597,877,
 4140,190899322]