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A281700 as a simple table

n a(n)
0 0
1 0
2 0
3 30
4 456
5 3396
6 14538
7 52840
8 150116
9 380336
10 860924
11 1839406
12 3551856
13 6684280
14 11834214
15 20108168
16 33051136
17 53176968 

[0,0,0,30,456,3396,14538,52840,150116,380336,
 860924,1839406,3551856,6684280,11834214,20108168,
 33051136,53176968]

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Last modified August 13 05:48 EDT 2024. Contains 375113 sequences. (Running on oeis4.)