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A034352 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 1
7 4
8 18
9 71
10 250
11 809
12 2484
13 7240
14 20341
15 55322
16 146237
17 376725
18 947555
19 2328999
20 5598888
21 13171906
22 30342861
23 68481058
24 151512767
25 328820214

[0,0,0,0,0,1,4,18,71,250,809,2484,7240,20341,
 55322,146237,376725,947555,2328999,5598888,
 13171906,30342861,68481058,151512767,328820214]

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Last modified April 23 15:04 EDT 2024. Contains 371914 sequences. (Running on oeis4.)