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A055512 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 36
5 380
6 6390
7 157962
8 5396888
9 243179064
10 13938711210
11 987858368750
12 84613071940452
13 8597251494954564
14 1020353444641839854
15 139627532137612581090
16 21788453795572514675760
17 3840596246648027262079472
18 758435490711709577216754642

[1,1,2,6,36,380,6390,157962,5396888,243179064,
 13938711210,987858368750,84613071940452,
 8597251494954564,1020353444641839854,
 139627532137612581090,21788453795572514675760,
 3840596246648027262079472,
 758435490711709577216754642]

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Last modified July 30 05:15 EDT 2021. Contains 346349 sequences. (Running on oeis4.)