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A099393 as a simple table

n a(n)
0 1
1 5
2 19
3 71
4 271
5 1055
6 4159
7 16511
8 65791
9 262655
10 1049599
11 4196351
12 16781311
13 67117055
14 268451839
15 1073774591
16 4295032831
17 17180000255
18 68719738879
19 274878431231
20 1099512676351
21 4398048608255
22 17592190238719

[1,5,19,71,271,1055,4159,16511,65791,262655,
 1049599,4196351,16781311,67117055,268451839,
 1073774591,4295032831,17180000255,68719738879,
 274878431231,1099512676351,4398048608255,
 17592190238719]

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Last modified April 26 12:31 EDT 2019. Contains 322472 sequences. (Running on oeis4.)