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A181376 as a simple table

n a(n)
1 2
2 7
3 32
4 161
5 736
6 3416
7 15976
8 74295
9 345334
10 1605089
11 7455698
12 34623338
13 160759047
14 746318897
15 3464508951
16 16081935250
17 74648713406

[2,7,32,161,736,3416,15976,74295,345334,1605089,
 7455698,34623338,160759047,746318897,3464508951,
 16081935250,74648713406]

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Last modified November 21 12:28 EST 2019. Contains 329370 sequences. (Running on oeis4.)