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A261548 as a simple table

n a(n)
1 48
2 80
3 170
4 336
5 652
6 1293
7 2588
8 5100
9 9996
10 19788
11 39102
12 76977
13 151492
14 298988
15 589456
16 1160987
17 2287512
18 4509948
19 8887914
20 17512005
21 34511260
22 68019255
23 134042352
24 264143499
25 520558296
26 1025893511
27 2021700618
28 3984123909

[48,80,170,336,652,1293,2588,5100,9996,19788,
 39102,76977,151492,298988,589456,1160987,2287512,
 4509948,8887914,17512005,34511260,68019255,
 134042352,264143499,520558296,1025893511,
 2021700618,3984123909]

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Last modified January 28 13:22 EST 2020. Contains 331321 sequences. (Running on oeis4.)