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A003000 as a simple table

n a(n)
0 1
1 2
2 2
3 4
4 6
5 12
6 20
7 40
8 74
9 148
10 284
11 568
12 1116
13 2232
14 4424
15 8848
16 17622
17 35244
18 70340
19 140680
20 281076
21 562152
22 1123736
23 2247472
24 4493828
25 8987656
26 17973080
27 35946160
28 71887896
29 143775792
30 287542736
31 575085472
32 1150153322
33 2300306644
34 4600578044
35 9201156088

[1,2,2,4,6,12,20,40,74,148,284,568,1116,2232,4424,
 8848,17622,35244,70340,140680,281076,562152,
 1123736,2247472,4493828,8987656,17973080,35946160,
 71887896,143775792,287542736,575085472,1150153322,
 2300306644,4600578044,9201156088]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)