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A212821 as a simple table

n a(n)
0 2
1 5
2 13
3 47
4 97
5 419
6 953
7 3019
8 7457
9 20963
10 61609
11 189947
12 557041
13 1614803
14 4840313
15 14430827
16 43276097
17 129959363
18 388862281
19 1165669339
20 3493338001
21 10471887539
22 31395739673

[2,5,13,47,97,419,953,3019,7457,20963,61609,
 189947,557041,1614803,4840313,14430827,43276097,
 129959363,388862281,1165669339,3493338001,
 10471887539,31395739673]

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Last modified August 27 11:06 EDT 2024. Contains 375468 sequences. (Running on oeis4.)