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A026023 as a simple table

n a(n)
0 1
1 2
2 4
3 8
4 15
5 30
6 56
7 112
8 210
9 420
10 792
11 1584
12 3003
13 6006
14 11440
15 22880
16 43758
17 87516
18 167960
19 335920
20 646646
21 1293292
22 2496144
23 4992288
24 9657700
25 19315400
26 37442160
27 74884320
28 145422675
29 290845350
30 565722720
31 1131445440
32 2203961430
33 4407922860

[1,2,4,8,15,30,56,112,210,420,792,1584,3003,6006,
 11440,22880,43758,87516,167960,335920,646646,
 1293292,2496144,4992288,9657700,19315400,37442160,
 74884320,145422675,290845350,565722720,1131445440,
 2203961430,4407922860]

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Last modified April 18 04:31 EDT 2024. Contains 371767 sequences. (Running on oeis4.)