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A052751 as a simple table

na(n)
01
11
24
319
4107
5647
64167
727847
8191747
91349743
109671316
1170297105
12517079157
133841701488
1428787546360
15217317367487
161651144126659
1712616570941114
1896891439504019
19747452640586114
205789461514134881

[1,1,4,19,107,647,4167,27847,191747,1349743,
 9671316,70297105,517079157,3841701488,28787546360,
 217317367487,1651144126659,12616570941114,
 96891439504019,747452640586114,5789461514134881]