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A366034 as a simple table

n a(n)
0 1
1 4
2 15
3 70
4 405
5 2676
6 19075
7 142562
8 1100961
9 8711968
10 70257055
11 575269278
12 4769615773
13 39961571228
14 337805166747
15 2877506096794
16 24675158973081
17 212835736433304
18 1845348003175063
19 16073746202176150
20 140590118902532757
21 1234285061013293716

[1,4,15,70,405,2676,19075,142562,1100961,8711968,
 70257055,575269278,4769615773,39961571228,
 337805166747,2877506096794,24675158973081,
 212835736433304,1845348003175063,
 16073746202176150,140590118902532757,
 1234285061013293716]

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Last modified August 1 22:11 EDT 2024. Contains 374817 sequences. (Running on oeis4.)