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A201246 as a simple table

n a(n)
1 0
2 0
3 12
4 780
5 16286
6 159452
7 992412
8 4567836
9 16959488
10 53617596
11 149618794
12 377841356
13 879314442
14 1911495356
15 3922051616
16 7657895196
17 14321764860
18 25791609308
19 44921419134
20 75946019596
21 125016699158
22 200899440924
23 315872975684
24 486869916572
25 736910896536

[0,0,12,780,16286,159452,992412,4567836,16959488,
 53617596,149618794,377841356,879314442,1911495356,
 3922051616,7657895196,14321764860,25791609308,
 44921419134,75946019596,125016699158,200899440924,
 315872975684,486869916572,736910896536]

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Last modified May 21 00:36 EDT 2022. Contains 353886 sequences. (Running on oeis4.)