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A144577 as a simple table

n a(n)
0 1
1 1
2 5
3 55
4 757
5 4973
6 194671
7 842411
8 11218933
9 3358395757
10 115106092471
11 2189182968473
12 7379994323497
13 1699615680368861
14 19346973713722411
15 23008945996332629551
16 1335947317588460238301
17 8289679255721758160317
18 1095056665754286849584771

[1,1,5,55,757,4973,194671,842411,11218933,
 3358395757,115106092471,2189182968473,
 7379994323497,1699615680368861,19346973713722411,
 23008945996332629551,1335947317588460238301,
 8289679255721758160317,1095056665754286849584771]

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Last modified June 10 13:58 EDT 2023. Contains 363205 sequences. (Running on oeis4.)