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A052501 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 1
5 25
6 145
7 505
8 1345
9 3025
10 78625
11 809425
12 4809025
13 20787625
14 72696625
15 1961583625
16 28478346625
17 238536558625
18 1425925698625
19 6764765838625
20 189239120970625
21 3500701266525625
22 37764092547420625
23 288099608198025625

[1,1,1,1,1,25,145,505,1345,3025,78625,809425,
 4809025,20787625,72696625,1961583625,28478346625,
 238536558625,1425925698625,6764765838625,
 189239120970625,3500701266525625,
 37764092547420625,288099608198025625]

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Last modified January 25 23:08 EST 2020. Contains 331270 sequences. (Running on oeis4.)