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A146721 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 5
6 21
7 49
8 265
9 1337
10 7025
11 55305
12 543439
13 6271235
14 94294061
15 1709408045
16 38060613237

[1,1,1,1,5,21,49,265,1337,7025,55305,543439,
 6271235,94294061,1709408045,38060613237]

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Last modified February 20 04:29 EST 2020. Contains 332063 sequences. (Running on oeis4.)