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A163271 as a simple table

n a(n)
1 0
2 2
3 4
4 10
5 24
6 58
7 140
8 338
9 816
10 1970
11 4756
12 11482
13 27720
14 66922
15 161564
16 390050
17 941664
18 2273378
19 5488420
20 13250218
21 31988856
22 77227930
23 186444716
24 450117362
25 1086679440
26 2623476242
27 6333631924
28 15290740090
29 36915112104
30 89120964298
31 215157040700

[0,2,4,10,24,58,140,338,816,1970,4756,11482,27720,
 66922,161564,390050,941664,2273378,5488420,
 13250218,31988856,77227930,186444716,450117362,
 1086679440,2623476242,6333631924,15290740090,
 36915112104,89120964298,215157040700]

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Last modified April 23 02:41 EDT 2024. Contains 371906 sequences. (Running on oeis4.)