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A178089 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 26
5 164
6 1548
7 22612
8 527016
9 20075480
10 1272488296
11 136039530768
12 24791209794352
13 7767414503113808
14 4214117431305739680
15 3983248890848252043616
16 6594358097712974323610528
17 19210839739434953100591639104
18 98895926239537023373263092515008

[1,1,2,6,26,164,1548,22612,527016,20075480,
 1272488296,136039530768,24791209794352,
 7767414503113808,4214117431305739680,
 3983248890848252043616,6594358097712974323610528,
 19210839739434953100591639104,
 98895926239537023373263092515008]

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Last modified May 27 12:12 EDT 2024. Contains 372858 sequences. (Running on oeis4.)