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A176957 as a simple table

n a(n)
0 1
1 4
2 5
3 22
4 79
5 353
6 1551
7 7192
8 33789
9 162387
10 791013
11 3905115
12 19480249
13 98078377
14 497676217
15 2542770602
16 13070074447
17 67540608437
18 350682097767
19 1828571411257
20 9571449473587
21 50275314445747
22 264915701312467

[1,4,5,22,79,353,1551,7192,33789,162387,791013,
 3905115,19480249,98078377,497676217,2542770602,
 13070074447,67540608437,350682097767,
 1828571411257,9571449473587,50275314445747,
 264915701312467]

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Last modified April 16 18:53 EDT 2021. Contains 343050 sequences. (Running on oeis4.)