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A095268 as a simple table

n a(n)
2 1
3 2
4 7
5 20
6 71
7 240
8 871
9 3148
10 11655
11 43332
12 162769
13 614198
14 2330537
15 8875768
16 33924859
17 130038230
18 499753855
19 1924912894
20 7429160296
21 28723877732
22 111236423288
23 431403470222
24 1675316535350
25 6513837679610
26 25354842100894
27 98794053269694
28 385312558571890
29 1504105116253904
30 5876236938019298
31 22974847399695092

[1,2,7,20,71,240,871,3148,11655,43332,162769,
 614198,2330537,8875768,33924859,130038230,
 499753855,1924912894,7429160296,28723877732,
 111236423288,431403470222,1675316535350,
 6513837679610,25354842100894,98794053269694,
 385312558571890,1504105116253904,5876236938019298,
 22974847399695092]

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Last modified April 5 05:06 EDT 2020. Contains 333238 sequences. (Running on oeis4.)