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A337500 as a simple table

n a(n)
0 1
1 2
2 4
3 8
4 14
5 30
6 50
7 112
8 182
9 420
10 672
11 1584
12 2508
13 6006
14 9438
15 22880
16 35750
17 87516
18 136136
19 335920
20 520676
21 1293292
22 1998724
23 4992288
24 7696444
25 19315400
26 29716000
27 74884320
28 115000920
29 290845350
30 445962870

[1,2,4,8,14,30,50,112,182,420,672,1584,2508,6006,
 9438,22880,35750,87516,136136,335920,520676,
 1293292,1998724,4992288,7696444,19315400,29716000,
 74884320,115000920,290845350,445962870]

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Last modified February 25 14:40 EST 2021. Contains 341609 sequences. (Running on oeis4.)