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A081561 as a simple table

n a(n)
0 1
1 2
2 8
3 32
4 176
5 992
6 6848
7 48512
8 398336
9 3356672
10 31751168
11 307914752
12 3282292736
13 35827392512
14 423577223168
15 5121571684352
16 66347485822976
17 877984005619712
18 12344359378485248
19 177098976447168512 

[1,2,8,32,176,992,6848,48512,398336,3356672,
 31751168,307914752,3282292736,35827392512,
 423577223168,5121571684352,66347485822976,
 877984005619712,12344359378485248,
 177098976447168512]

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Last modified May 5 10:46 EDT 2024. Contains 372275 sequences. (Running on oeis4.)