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A154654 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 24
5 120
6 720
7 3720
8 17304
9 76110
10 329462
11 1441923
12 6487445
13 29555588
14 135025756
15 615260976
16 2791161792
17 12618600768
18 57008446080
19 257708989200
20 1166042944564
21 5279435858788
22 23908888017477
23 108262665958797
24 490132089640318
25 2218641353956314

[1,1,2,6,24,120,720,3720,17304,76110,329462,
 1441923,6487445,29555588,135025756,615260976,
 2791161792,12618600768,57008446080,257708989200,
 1166042944564,5279435858788,23908888017477,
 108262665958797,490132089640318,2218641353956314]

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Last modified April 23 14:32 EDT 2024. Contains 371914 sequences. (Running on oeis4.)