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A235349 as a simple table

n a(n)
0 0
1 1
2 0
3 2
4 2
5 14
6 30
7 146
8 434
9 1862
10 6470
11 26586
12 99946
13 406366
14 1593774
15 6492450
16 26100578
17 106979894
18 436906902
19 1803472874
20 7446478746
21 30945624910
22 128821054846
23 538584390834
24 2256485249682
25 9483898177574

[0,1,0,2,2,14,30,146,434,1862,6470,26586,99946,
 406366,1593774,6492450,26100578,106979894,
 436906902,1803472874,7446478746,30945624910,
 128821054846,538584390834,2256485249682,
 9483898177574]

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Last modified July 28 20:51 EDT 2024. Contains 374726 sequences. (Running on oeis4.)