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A287227 as a simple table

n a(n)
0 1
1 2
2 5
3 18
4 87
5 462
6 2635
7 16870
8 118969
9 915442
10 7535369
11 66807234
12 633443407
13 6354135838
14 67480769839
15 754734433310
16 8870886701401 

[1,2,5,18,87,462,2635,16870,118969,915442,7535369,
 66807234,633443407,6354135838,67480769839,
 754734433310,8870886701401]

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Last modified April 18 15:48 EDT 2024. Contains 371780 sequences. (Running on oeis4.)