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A095109 as a simple table

n a(n)
1 0
2 0
3 0
4 3
5 13
6 40
7 194
8 389
9 1407
10 3646
11 13300
12 39166
13 131464
14 389575
15 1627565
16 5556317
17 19913811
18 72249861
19 272188855
20 996509475 

[0,0,0,3,13,40,194,389,1407,3646,13300,39166,
 131464,389575,1627565,5556317,19913811,72249861,
 272188855,996509475]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)