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A368976 as a simple table

n a(n)
0 1
1 4
2 26
3 202
4 1729
5 15730
6 149249
7 1460300
8 14627340
9 149254996
10 1545959720
11 16212144520
12 171789072036
13 1836515799464
14 19783708310984
15 214539449634588
16 2340148164406642
17 25658221358522584
18 282627226176802000
19 3126081536554547488
20 34706443838025828198 

[1,4,26,202,1729,15730,149249,1460300,14627340,
 149254996,1545959720,16212144520,171789072036,
 1836515799464,19783708310984,214539449634588,
 2340148164406642,25658221358522584,
 282627226176802000,3126081536554547488,
 34706443838025828198]

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Last modified May 21 02:29 EDT 2024. Contains 372720 sequences. (Running on oeis4.)