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A000369 as a simple table

n a(n)
1 1
2 3
3 1
4 21
5 9
6 1
7 231
8 111
9 18
10 1
11 3465
12 1785
13 345
14 30
15 1
16 65835
17 35595
18 7650
19 825
20 45
21 1
22 1514205
23 848925
24 196245
25 24150
26 1680
27 63
28 1
29 40883535
30 23586255
31 5755050
32 775845
33 62790
34 3066
35 84
36 1
37 1267389585
38 748471185
39 190482705
40 27478710

[1,3,1,21,9,1,231,111,18,1,3465,1785,345,30,1,
 65835,35595,7650,825,45,1,1514205,848925,196245,
 24150,1680,63,1,40883535,23586255,5755050,775845,
 62790,3066,84,1,1267389585,748471185,190482705,
 27478710]

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Last modified April 24 13:41 EDT 2024. Contains 371957 sequences. (Running on oeis4.)