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A006017 as a simple table

n a(n)
0 1
1 3
2 6
3 13
4 24
5 52
6 103
7 222
8 384
9 832
10 1648
11 3552
12 6237
13 13563
14 26511
15 56906
16 98304
17 212992
18 421888
19 909312
20 1596672
21 3472128
22 6786816
23 14567936
24 25190110
25 54589881
26 108036850
27 232800673
28 408783316
29 888883132

[1,3,6,13,24,52,103,222,384,832,1648,3552,6237,
 13563,26511,56906,98304,212992,421888,909312,
 1596672,3472128,6786816,14567936,25190110,
 54589881,108036850,232800673,408783316,888883132]

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Last modified May 6 06:00 EDT 2021. Contains 343580 sequences. (Running on oeis4.)