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A019099 as a simple table

n a(n)
3 0
4 2
5 2
6 5
7 18
8 20
9 34
10 148
11 243
12 673
13 1248
14 3321
15 6864
16 17337
17 39632
18 99576
19 243766
20 630498
21 1574713
22 4196482
23 10768129
24 28840282
25 75641476
26 202359008
27 535092286
28 1428265543
29 3778608704
30 10050453841

[0,2,2,5,18,20,34,148,243,673,1248,3321,6864,
 17337,39632,99576,243766,630498,1574713,4196482,
 10768129,28840282,75641476,202359008,535092286,
 1428265543,3778608704,10050453841]

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Last modified August 11 00:55 EDT 2022. Contains 356046 sequences. (Running on oeis4.)