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A306906 as a simple table

n a(n)
1 1
2 2
3 6
4 8
5 15
6 30
7 49
8 96
9 189
10 360
11 693
12 1416
13 2743
14 5516
15 10980
16 21952
17 43707
18 87642
19 174781
20 349920
21 699216
22 1398804
23 2796225
24 5594112
25 11184875
26 22372376
27 44739810
28 89484080
29 178956999
30 357926040
31 715827913
32 1431677824
33 2863313640

[1,2,6,8,15,30,49,96,189,360,693,1416,2743,5516,
 10980,21952,43707,87642,174781,349920,699216,
 1398804,2796225,5594112,11184875,22372376,
 44739810,89484080,178956999,357926040,715827913,
 1431677824,2863313640]

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Last modified August 5 11:15 EDT 2021. Contains 346467 sequences. (Running on oeis4.)