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A147355 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 6
9 9
10 38
11 25
12 340
13 57
14 1815
15 551
16 17400
17 8604
18 372235
19 122881
20 11641876
21 1647352
22 359458545
23 42868635
24 13529698097
25 1998622860 

[1,1,1,1,1,1,1,6,9,38,25,340,57,1815,551,17400,
 8604,372235,122881,11641876,1647352,359458545,
 42868635,13529698097,1998622860]

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Last modified August 30 20:41 EDT 2024. Contains 375548 sequences. (Running on oeis4.)