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A188168 as a simple table

n a(n)
0 1
1 1
2 10
3 55
4 325
5 1900
6 11125
7 65125
8 381250
9 2231875
10 13065625
11 76487500
12 447765625
13 2621265625
14 15345156250
15 89832109375
16 525886328125
17 3078592187500
18 18022392578125
19 105504923828125
20 617636582031250
21 3615707529296875
22 21166720556640625

[1,1,10,55,325,1900,11125,65125,381250,2231875,
 13065625,76487500,447765625,2621265625,
 15345156250,89832109375,525886328125,
 3078592187500,18022392578125,105504923828125,
 617636582031250,3615707529296875,
 21166720556640625]

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Last modified October 21 21:51 EDT 2021. Contains 348155 sequences. (Running on oeis4.)