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A119917 as a simple table

n a(n)
1 1
2 3
3 9
4 21
5 51
6 105
7 231
8 471
9 975
10 1965
11 4011
12 8031
13 16221
14 32475
15 65205
16 130485
17 261555
18 523131
19 1047417
20 2094957
21 4191975
22 8384229
23 16772835
24 33545715
25 67100115
26 134200785
27 268418001
28 536837061
29 1073707971
30 2147415981

[1,3,9,21,51,105,231,471,975,1965,4011,8031,16221,
 32475,65205,130485,261555,523131,1047417,2094957,
 4191975,8384229,16772835,33545715,67100115,
 134200785,268418001,536837061,1073707971,
 2147415981]

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)