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A053375 as a simple table

na(n)
01
13
23
31
439
55
6273
71
84
9531
107
117
1212
1369
145967
15413
169
179
183
19165
204
2122419
2293
2328
24105
2511
2611
27419775
28927
296578829
301
31140634693
3220
33105
345019135
3513
36313191
3736
38123
39650783
401
411153080099
424
4319162705353
443
455
4615
4715
485
493

[1,3,3,1,39,5,273,1,4,531,7,7,12,69,5967,413,9,9,
 3,165,4,22419,93,28,105,11,11,419775,927,6578829,
 1,140634693,20,105,5019135,13,313191,36,123,
 650783,1,1153080099,4,19162705353,3,5,15,15,5,3]