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A372871 as a simple table

n a(n)
0 0
1 1
2 2
3 10
4 28
5 126
6 236
7 1716
8 4376
9 24310
10 71452
11 352716
12 1036432
13 5200300
14 15661088
15 77558760
16 234338224
17 1166803110
18 3538500140
19 17672631900
20 53754680928
21 269128937220
22 811847006192
23 4116715363800
24 12392037943040
25 63205303218876
26 190668639444376

[0,1,2,10,28,126,236,1716,4376,24310,71452,352716,
 1036432,5200300,15661088,77558760,234338224,
 1166803110,3538500140,17672631900,53754680928,
 269128937220,811847006192,4116715363800,
 12392037943040,63205303218876,190668639444376]

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Last modified August 7 01:08 EDT 2024. Contains 375002 sequences. (Running on oeis4.)