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A181936 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 5
7 20
8 55
9 125
10 251
11 2300
12 15775
13 70500
14 249250
15 750751
16 10006375
17 97226875
18 601638125
19 2886735625
20 11593285251
21 202808749375
22 2550175096250
23 20163891580625
24 122209131374375
25 613498040952501
26 13287626090593750
27 205055676105734375

[1,1,1,1,1,1,5,20,55,125,251,2300,15775,70500,
 249250,750751,10006375,97226875,601638125,
 2886735625,11593285251,202808749375,2550175096250,
 20163891580625,122209131374375,613498040952501,
 13287626090593750,205055676105734375]

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)