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A197160 as a simple table

n a(n)
1 6
2 15
3 44
4 141
5 480
6 1703
7 6216
8 23136
9 87334
10 333309
11 1283706
12 4982458
13 19466130
14 76479612
15 301923554

[6,15,44,141,480,1703,6216,23136,87334,333309,
 1283706,4982458,19466130,76479612,301923554]

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Last modified June 18 20:45 EDT 2021. Contains 345121 sequences. (Running on oeis4.)