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A172012 as a simple table

na(n)
02
13
215
354
4207
5783
62970
711259
842687
9161838
10613575
112326239
128819442
1333437043
14126769455
15480619494
161822166847
176908359023
1826191577610
1999299809899
20376474162527
211427321917278
225411388239415
2320516130470079
2477782556128482
25294896059795683

[2,3,15,54,207,783,2970,11259,42687,161838,613575,
 2326239,8819442,33437043,126769455,480619494,
 1822166847,6908359023,26191577610,99299809899,
 376474162527,1427321917278,5411388239415,
 20516130470079,77782556128482,294896059795683]