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A002115 as a simple table

n a(n)
0 1
1 1
2 19
3 1513
4 315523
5 136085041
6 105261234643
7 132705221399353
8 254604707462013571
9 705927677520644167681
10 2716778010767155313771539
11 14050650308943101316593590153
12 95096065132610734223282520762883
13 823813936407337360148622860507620561

[1,1,19,1513,315523,136085041,105261234643,
 132705221399353,254604707462013571,
 705927677520644167681,2716778010767155313771539,
 14050650308943101316593590153,
 95096065132610734223282520762883,
 823813936407337360148622860507620561]

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Last modified November 19 00:12 EST 2019. Contains 329310 sequences. (Running on oeis4.)