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A131370 as a simple table

n a(n)
0 3
1 2
2 0
3 0
4 4
5 12
6 24
7 44
8 84
9 168
10 340
11 684
12 1368
13 2732
14 5460
15 10920
16 21844
17 43692
18 87384
19 174764
20 349524
21 699048
22 1398100
23 2796204
24 5592408
25 11184812
26 22369620
27 44739240
28 89478484
29 178956972
30 357913944
31 715827884
32 1431655764
33 2863311528

[3,2,0,0,4,12,24,44,84,168,340,684,1368,2732,5460,
 10920,21844,43692,87384,174764,349524,699048,
 1398100,2796204,5592408,11184812,22369620,
 44739240,89478484,178956972,357913944,715827884,
 1431655764,2863311528]

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Last modified April 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)