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A299968 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 15
5 51
6 189
7 753
8 3248
9 14738
10 70658
11 354178
12 1857703
13 10121033

[1,1,2,5,15,51,189,753,3248,14738,70658,354178,
 1857703,10121033]

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Last modified January 28 06:29 EST 2020. Contains 331317 sequences. (Running on oeis4.)