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A182929 as a simple table

n a(n)
0 0
1 1
2 4
3 7
4 16
5 61
6 160
7 547
8 1456
9 5110
10 13120
11 44287
12 118096
13 398581
14 1075840
15 3720094
16 9565936
17 32285041
18 86093440
19 290565367
20 774840976
21 2711943430
22 7059662080
23 23535794707
24 61987278400
25 212693848522
26 564945153280
27 1979718703900
28 5083731656656

[0,1,4,7,16,61,160,547,1456,5110,13120,44287,
 118096,398581,1075840,3720094,9565936,32285041,
 86093440,290565367,774840976,2711943430,
 7059662080,23535794707,61987278400,212693848522,
 564945153280,1979718703900,5083731656656]

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Last modified June 20 06:56 EDT 2021. Contains 345157 sequences. (Running on oeis4.)