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A026582 as a simple table

n a(n)
0 1
1 3
2 8
3 20
4 50
5 125
6 314
7 792
8 2003
9 5079
10 12897
11 32798
12 83478
13 212657
14 542040
15 1382376
16 3526916
17 9001805
18 22982298
19 58691692
20 149919707
21 383028163
22 978768731
23 2501494110
24 6394118165
25 16346237219
26 41793150985
27 106865638630

[1,3,8,20,50,125,314,792,2003,5079,12897,32798,
 83478,212657,542040,1382376,3526916,9001805,
 22982298,58691692,149919707,383028163,978768731,
 2501494110,6394118165,16346237219,41793150985,
 106865638630]

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Last modified August 3 06:43 EDT 2021. Contains 346435 sequences. (Running on oeis4.)