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A094375 as a simple table

n a(n)
0 1
1 4
2 15
3 55
4 201
5 739
6 2745
7 10315
8 39201
9 150499
10 582825
11 2273275
12 8918001
13 35144659
14 138992505
15 551203435
16 2190497601
17 8719009219
18 34747027785
19 138600952795
20 553242074001
21 2209482560179
22 8827471984665
23 35278511073355

[1,4,15,55,201,739,2745,10315,39201,150499,582825,
 2273275,8918001,35144659,138992505,551203435,
 2190497601,8719009219,34747027785,138600952795,
 553242074001,2209482560179,8827471984665,
 35278511073355]

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Last modified March 28 14:33 EDT 2024. Contains 371254 sequences. (Running on oeis4.)