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A125107 as a simple table

n a(n)
0 0
1 0
2 0
3 1
4 6
5 26
6 100
7 365
8 1302
9 4606
10 16284
11 57762
12 205964
13 738804
14 2666248
15 9678461
16 35324902
17 129579254
18 477507628
19 1767001046
20 6563596132
21 24465218444
22 91480466488
23 343055419346
24 1289895758716
25 4861929624236
26 18367319517720

[0,0,0,1,6,26,100,365,1302,4606,16284,57762,
 205964,738804,2666248,9678461,35324902,129579254,
 477507628,1767001046,6563596132,24465218444,
 91480466488,343055419346,1289895758716,
 4861929624236,18367319517720]

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Last modified September 11 15:58 EDT 2024. Contains 375836 sequences. (Running on oeis4.)