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A110128 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 16
5 44
6 200
7 1288
8 9512
9 78652
10 744360
11 7867148
12 91310696
13 1154292796
14 15784573160
15 232050062524
16 3648471927912
17 61080818510972
18 1084657970877416
19 20361216987032284
20 402839381030339816
21 8377409956454452732

[1,1,2,4,16,44,200,1288,9512,78652,744360,7867148,
 91310696,1154292796,15784573160,232050062524,
 3648471927912,61080818510972,1084657970877416,
 20361216987032284,402839381030339816,
 8377409956454452732]

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Last modified August 7 17:44 EDT 2020. Contains 336278 sequences. (Running on oeis4.)