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A056593 as a simple table

n a(n)
0 1
1 2
2 4
3 10
4 32
5 132
6 692
7 4620
8 39352
9 427572
10 5918992
11 104375880
12 2344751912
13 67092113592
14 2444702271152
15 113425536387240
16 6700361921561152
17 503909247633965712
18 48243317287320644752
19 5879293173259041034800

[1,2,4,10,32,132,692,4620,39352,427572,5918992,
 104375880,2344751912,67092113592,2444702271152,
 113425536387240,6700361921561152,
 503909247633965712,48243317287320644752,
 5879293173259041034800]

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Last modified September 19 17:12 EDT 2020. Contains 337178 sequences. (Running on oeis4.)