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A108484 as a simple table

n a(n)
0 1
1 1
2 4
3 19
4 55
5 220
6 793
7 2845
8 10480
9 37963
10 138259
11 503608
12 1831969
13 6669865
14 24276892
15 88362451
16 321640831
17 1170726484
18 4261339801
19 15510894949
20 56458080328
21 205502135851
22 748007984827
23 2722677076336
24 9910284168961

[1,1,4,19,55,220,793,2845,10480,37963,138259,
 503608,1831969,6669865,24276892,88362451,
 321640831,1170726484,4261339801,15510894949,
 56458080328,205502135851,748007984827,
 2722677076336,9910284168961]

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Last modified April 16 10:45 EDT 2024. Contains 371709 sequences. (Running on oeis4.)