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A288415 as a simple table

na(n)
01
11
29
337
4137
5487
61749
75901
819695
963832
10202905
11632689
121941394
135860868
1417448558
1551255292
16148726841
17426605755
181210569740
193400427281
209460683203
2126083933370
2271300381025
23193313191005
24520057831035
251388722752205
263682100198763

[1,1,9,37,137,487,1749,5901,19695,63832,202905,
 632689,1941394,5860868,17448558,51255292,
 148726841,426605755,1210569740,3400427281,
 9460683203,26083933370,71300381025,193313191005,
 520057831035,1388722752205,3682100198763]