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A318088 as a simple table

n a(n)
1 1
2 5
3 7
4 159
5 493
6 1945
7 8525
8 37863
9 161424
10 688404
11 2927486
12 12630400
13 54054127
14 233057675
15 997644574
16 4291179236
17 18396315644
18 79062911556
19 339244535826
20 1457115193095
21 6254370569019
22 26856741255383
23 115296498702507

[1,5,7,159,493,1945,8525,37863,161424,688404,
 2927486,12630400,54054127,233057675,997644574,
 4291179236,18396315644,79062911556,339244535826,
 1457115193095,6254370569019,26856741255383,
 115296498702507]

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Last modified November 26 21:07 EST 2021. Contains 349344 sequences. (Running on oeis4.)