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A341895 as a simple table

n a(n)
1 0
2 4
3 20
4 39
5 175
6 779
7 1500
8 6664
9 29600
10 56979
11 253075
12 1124039
13 2163720
14 9610204
15 42683900
16 82164399
17 364934695
18 1620864179
19 3120083460
20 13857908224
21 61550154920
22 118481007099
23 526235577835
24 2337285022799
25 4499158186320
26 19983094049524
27 88755280711460
28 170849530073079
29 758831338304095
30 3370363382012699

[0,4,20,39,175,779,1500,6664,29600,56979,253075,
 1124039,2163720,9610204,42683900,82164399,
 364934695,1620864179,3120083460,13857908224,
 61550154920,118481007099,526235577835,
 2337285022799,4499158186320,19983094049524,
 88755280711460,170849530073079,758831338304095,
 3370363382012699]

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)