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A027118 as a simple table

n a(n)
0 1
1 2
2 3
3 7
4 16
5 39
6 98
7 252
8 659
9 1747
10 4682
11 12662
12 34505
13 94644
14 261069
15 723707
16 2014952
17 5631875
18 15796210
19 44444302
20 125405217
21 354765866
22 1006003375
23 2858939669
24 8141135778
25 23225997936
26 66376634429
27 190000938785

[1,2,3,7,16,39,98,252,659,1747,4682,12662,34505,
 94644,261069,723707,2014952,5631875,15796210,
 44444302,125405217,354765866,1006003375,
 2858939669,8141135778,23225997936,66376634429,
 190000938785]

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Last modified August 10 04:38 EDT 2020. Contains 336368 sequences. (Running on oeis4.)