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A018949 as a simple table

n a(n)
2 1
3 14
4 33
5 308
6 1356
7 9515
8 54475
9 357706
10 2245183
11 14782772
12 97279016
13 655110237
14 4458418304
15 30828999850
16 215762610377 

[1,14,33,308,1356,9515,54475,357706,2245183,
 14782772,97279016,655110237,4458418304,
 30828999850,215762610377]

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Last modified July 24 05:58 EDT 2024. Contains 374575 sequences. (Running on oeis4.)