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A145671 as a simple table

n a(n)
1 1
2 2
3 4
4 8
5 15
6 32
7 88
8 209
9 539
10 1403
11 3698
12 9962
13 26447
14 71579
15 196590
16 541473
17 1501720
18 4186566
19 11737617

[1,2,4,8,15,32,88,209,539,1403,3698,9962,26447,
 71579,196590,541473,1501720,4186566,11737617]

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Last modified August 3 15:54 EDT 2021. Contains 346439 sequences. (Running on oeis4.)