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A209299 as a simple table

n a(n)
0 1
1 1
2 4
3 16
4 98
5 650
6 5492
7 50468
8 543252
9 6375668
10 83752144
11 1191943168
12 18563252968
13 310499073352
14 5598292885200
15 107674197010960
16 2208771882047120
17 48025183073776016
18 1105381958987588672
19 26817991185065949440
20 684717365565811694880
21 18341702444087583851936

[1,1,4,16,98,650,5492,50468,543252,6375668,
 83752144,1191943168,18563252968,310499073352,
 5598292885200,107674197010960,2208771882047120,
 48025183073776016,1105381958987588672,
 26817991185065949440,684717365565811694880,
 18341702444087583851936]

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Last modified May 26 02:50 EDT 2024. Contains 372807 sequences. (Running on oeis4.)