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A243787 as a simple table

n a(n)
1 1
2 1
3 2
4 5
5 14
6 52
7 228
8 1209
9 7463
10 52520
11 407856
12 3414672
13 30229061
14 279124327

[1,1,2,5,14,52,228,1209,7463,52520,407856,3414672,
 30229061,279124327]

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Last modified August 8 02:45 EDT 2020. Contains 336290 sequences. (Running on oeis4.)