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A146778 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 5
7 17
8 43
9 145
10 633
11 4131
12 31831
13 267243
14 2665825
15 33726547
16 521722083
17 9834245987
18 228276099483
19 6476476460303
20 221310304612835
21 9127636122908961

[1,1,1,1,1,5,17,43,145,633,4131,31831,267243,
 2665825,33726547,521722083,9834245987,
 228276099483,6476476460303,221310304612835,
 9127636122908961]

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Last modified February 8 08:49 EST 2023. Contains 360138 sequences. (Running on oeis4.)