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A194489 as a simple table

n a(n)
1 0
2 0
3 0
4 13
5 387
6 3727
7 23496
8 111433
9 429343
10 1407755
11 4061432
12 10561723
13 25208796
14 55996244
15 117021864
16 232070481
17 439779278
18 800893832
19 1408234986
20 2400123737
21 3978154435
22 6430366713
23 10161044648
24 15728568633
25 23892962265
26 35675014169

[0,0,0,13,387,3727,23496,111433,429343,1407755,
 4061432,10561723,25208796,55996244,117021864,
 232070481,439779278,800893832,1408234986,
 2400123737,3978154435,6430366713,10161044648,
 15728568633,23892962265,35675014169]

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Last modified April 16 18:02 EDT 2024. Contains 371750 sequences. (Running on oeis4.)