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A151495 as a simple table

n a(n)
0 1
1 1
2 6
3 22
4 112
5 556
6 2992
7 16416
8 93040
9 537004
10 3156300
11 18805948
12 113415860
13 690920348
14 4246311084
15 26297470908
16 163962253192
17 1028405157316
18 6484807032820
19 41086983729464
20 261446728122772
21 1670163037965324
22 10707288651740680
23 68867225024134936
24 444264596237129308
25 2873850125874850068

[1,1,6,22,112,556,2992,16416,93040,537004,3156300,
 18805948,113415860,690920348,4246311084,
 26297470908,163962253192,1028405157316,
 6484807032820,41086983729464,261446728122772,
 1670163037965324,10707288651740680,
 68867225024134936,444264596237129308,
 2873850125874850068]

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Last modified April 25 12:33 EDT 2024. Contains 371969 sequences. (Running on oeis4.)