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A234715 as a simple table

na(n)
01
11
23
333
4825
5113025
65538225
760920475
846360481475
9330503872435275
1020160736218551775
111687675389591187637025
12145175524688023551724527525
13166370135063802174111446471957325
14194941377468714112878127508925972294225
158038017817167489016303831575544615607779425

[1,1,3,33,825,113025,5538225,60920475,46360481475,
 330503872435275,20160736218551775,
 1687675389591187637025,
 145175524688023551724527525,
 166370135063802174111446471957325,
 194941377468714112878127508925972294225,
 8038017817167489016303831575544615607779425]