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A020531 as a simple table

n a(n)
0 5
1 29
2 305
3 4289
4 66305
5 1051649
6 16789505
7 268484609
8 4295163905
9 68720263169
10 1099514773505
11 17592198627329
12 281475027042305
13 4503599828697089
14 72057594843234305
15 1152921507828072449
16 18446744086594453505
17 295147905230892433409
18 4722366483075803643905

[5,29,305,4289,66305,1051649,16789505,268484609,
 4295163905,68720263169,1099514773505,
 17592198627329,281475027042305,4503599828697089,
 72057594843234305,1152921507828072449,
 18446744086594453505,295147905230892433409,
 4722366483075803643905]

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Last modified April 24 11:01 EDT 2024. Contains 371936 sequences. (Running on oeis4.)