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A065920 as a simple table

n a(n)
0 0
1 1
2 15
3 246
4 4810
5 111315
6 2994621
7 92069740
8 3188772756
9 122934101445
10 5223324100555
11 242563221769506
12 12224586738476190
13 664572113979550231
14 38767776344788218105
15 2415639337342677314520
16 160131212043826343202856

[0,1,15,246,4810,111315,2994621,92069740,
 3188772756,122934101445,5223324100555,
 242563221769506,12224586738476190,
 664572113979550231,38767776344788218105,
 2415639337342677314520,160131212043826343202856]

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Last modified June 4 17:50 EDT 2020. Contains 334828 sequences. (Running on oeis4.)