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A133998 as a simple table

n a(n)
0 1
1 1
2 37
3 577
4 8236
5 91030
6 835476
7 6436782
8 42650532
9 246386091
10 1256602779
11 5711668755
12 23322797475
13 86114390460
14 289098819780
15 886568158468
16 2493474394140
17 6453694644705
18 15417163018725
19 34080036632565
20 69864082608210

[1,1,37,577,8236,91030,835476,6436782,42650532,
 246386091,1256602779,5711668755,23322797475,
 86114390460,289098819780,886568158468,
 2493474394140,6453694644705,15417163018725,
 34080036632565,69864082608210]

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Last modified May 8 23:08 EDT 2024. Contains 372341 sequences. (Running on oeis4.)