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A042343 as a simple table

na(n)
01
12
25
37
412
519
631
781
8193
910117
1020427
1150971
1271398
13122369
14193767
15316136
16826039
171968214
18103173167
19208314548
20519802263
21728116811
221247919074
231976035885
243223954959
258423945803
2620071846565
271052159967183
282124391780931
295300943529045

[1,2,5,7,12,19,31,81,193,10117,20427,50971,71398,
 122369,193767,316136,826039,1968214,103173167,
 208314548,519802263,728116811,1247919074,
 1976035885,3223954959,8423945803,20071846565,
 1052159967183,2124391780931,5300943529045]