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A306484 as a simple table

n a(n)
0 1
1 1
2 4
3 8
4 24
5 47
6 129
7 255
8 641
9 1308
10 3064
11 6225
12 14286
13 28792
14 63571
15 129240
16 278329
17 561044
18 1190501
19 2387695
20 4987250
21 9976529
22 20536591
23 40879937
24 83416195
25 165182927
26 333581057
27 658385847
28 1318764282
29 2590568669
30 5154370637
31 10082762399
32 19929958391
33 38848175389
34 76331335061
35 148233818041

[1,1,4,8,24,47,129,255,641,1308,3064,6225,14286,
 28792,63571,129240,278329,561044,1190501,2387695,
 4987250,9976529,20536591,40879937,83416195,
 165182927,333581057,658385847,1318764282,
 2590568669,5154370637,10082762399,19929958391,
 38848175389,76331335061,148233818041]

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Last modified October 23 13:38 EDT 2019. Contains 328345 sequences. (Running on oeis4.)