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A057507 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 3
5 10
6 18
7 46
8 95
9 236
10 528
11 1288
12 2936
13 6984
14 16212
15 38528
16 90717
17 216648
18 516358
19 1240818
20 2979992 

[1,1,1,2,3,10,18,46,95,236,528,1288,2936,6984,
 16212,38528,90717,216648,516358,1240818,2979992]

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Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)