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A034274 as a simple table

n a(n)
1 5
2 25
3 119
4 546
5 2442
6 10725
7 46475
8 199342
9 848198
10 3585946
11 15080870
12 63146500
13 263432340
14 1095517485
15 4543460595
16 18798494550
17 77616288750
18 319874637390
19 1316106144210
20 5407045011420
21 22184521682700
22 90910797617250
23 372137346502974

[5,25,119,546,2442,10725,46475,199342,848198,
 3585946,15080870,63146500,263432340,1095517485,
 4543460595,18798494550,77616288750,319874637390,
 1316106144210,5407045011420,22184521682700,
 90910797617250,372137346502974]

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Last modified October 17 15:26 EDT 2021. Contains 348053 sequences. (Running on oeis4.)