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A275126 as a simple table

na(n)
15
216
345
4129
5373
61083
73148
89157
926623
1077372
11224857
12653525
131899462
145520787
1516046124
1646637722
17135551305
18393976458
191145083415
203328158969
219673218248
2228114986916
2381715561920
24237504397813
25690301064559

[5,16,45,129,373,1083,3148,9157,26623,77372,
 224857,653525,1899462,5520787,16046124,46637722,
 135551305,393976458,1145083415,3328158969,
 9673218248,28114986916,81715561920,237504397813,
 690301064559]