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A051924 as a simple table

n a(n)
1 1
2 4
3 14
4 50
5 182
6 672
7 2508
8 9438
9 35750
10 136136
11 520676
12 1998724
13 7696444
14 29716000
15 115000920
16 445962870
17 1732525830
18 6741529080
19 26270128500
20 102501265020
21 400411345620
22 1565841089280
23 6129331763880
24 24014172955500

[1,4,14,50,182,672,2508,9438,35750,136136,520676,
 1998724,7696444,29716000,115000920,445962870,
 1732525830,6741529080,26270128500,102501265020,
 400411345620,1565841089280,6129331763880,
 24014172955500]

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Last modified April 25 11:39 EDT 2024. Contains 371969 sequences. (Running on oeis4.)