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A278460 as a simple table

n a(n)
0 1
1 2
2 10
3 66
4 504
5 4008
6 32834
7 275608
8 2360480
9 20556620
10 181529552
11 1621938126
12 14637043030
13 133227981608
14 1221707669122
15 11276264756890
16 104678045392986
17 976696485890714
18 9154664125402120
19 86159716204843096
20 813905566526799242
21 7714432262247963256
22 73344196288917825312

[1,2,10,66,504,4008,32834,275608,2360480,20556620,
 181529552,1621938126,14637043030,133227981608,
 1221707669122,11276264756890,104678045392986,
 976696485890714,9154664125402120,
 86159716204843096,813905566526799242,
 7714432262247963256,73344196288917825312]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)