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A303307 as a simple table

n a(n)
0 1
1 2
2 6
3 20
4 54
5 156
6 444
7 1192
8 3174
9 8620
10 22516
11 58392
12 151996
13 387352
14 984888
15 2507088
16 6270854
17 15659724
18 39067588
19 96454072
20 237663444
21 584266696
22 1425921992
23 3470869296
24 8431325916
25 20380759544
26 49122457608
27 118178637040
28 283150466232
29 676768288176

[1,2,6,20,54,156,444,1192,3174,8620,22516,58392,
 151996,387352,984888,2507088,6270854,15659724,
 39067588,96454072,237663444,584266696,1425921992,
 3470869296,8431325916,20380759544,49122457608,
 118178637040,283150466232,676768288176]

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)