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A198791 as a simple table

n a(n)
1 1
2 5
3 19
4 27
5 87
6 989
7 3119
8 5399
9 8189
10 99663
11 57455
12 222397
13 2603047
14 8476649
15 117917347
16 290190179
17 360064247
18 1344262919
19 3181391639
20 39179386959
21 204692414215
22 165424388219
23 2254874520599
24 2922139183443
25 594630799853

[1,5,19,27,87,989,3119,5399,8189,99663,57455,
 222397,2603047,8476649,117917347,290190179,
 360064247,1344262919,3181391639,39179386959,
 204692414215,165424388219,2254874520599,
 2922139183443,594630799853]

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Last modified January 16 17:26 EST 2022. Contains 350376 sequences. (Running on oeis4.)