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A301577 as a simple table

n a(n)
0 1
1 1
2 4
3 16
4 75
5 366
6 1887
7 10010
8 54493
9 302302
10 1703599
11 9723774
12 56101292
13 326640411
14 1916800425
15 11325242328
16 67316128903
17 402245682741
18 2414978550718
19 14560379165160
20 88122911824659
21 535188028077586
22 3260549998701951
23 19921639754064470
24 122041156818328779

[1,1,4,16,75,366,1887,10010,54493,302302,1703599,
 9723774,56101292,326640411,1916800425,11325242328,
 67316128903,402245682741,2414978550718,
 14560379165160,88122911824659,535188028077586,
 3260549998701951,19921639754064470,
 122041156818328779]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)