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A073525 as a simple table

na(n)
01
12
25
315
451
5187
6716
72811
811204
945089
10182636
11743180
123034361
1312420945
1450946169
15209296302
16860941813
173545265139
1814611979639
1960268977054
20248744871983
211027188978686
224243751316106
2317539851091965
2472519657462805
25299930389183429
261240806275485094

[1,2,5,15,51,187,716,2811,11204,45089,182636,
 743180,3034361,12420945,50946169,209296302,
 860941813,3545265139,14611979639,60268977054,
 248744871983,1027188978686,4243751316106,
 17539851091965,72519657462805,299930389183429,
 1240806275485094]