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A126087 as a simple table

n a(n)
0 1
1 1
2 3
3 5
4 15
5 29
6 87
7 181
8 543
9 1181
10 3543
11 7941
12 23823
13 54573
14 163719
15 381333
16 1143999
17 2699837
18 8099511
19 19319845
20 57959535
21 139480397
22 418441191
23 1014536117
24 3043608351
25 7426790749
26 22280372247
27 54669443141
28 164008329423

[1,1,3,5,15,29,87,181,543,1181,3543,7941,23823,
 54573,163719,381333,1143999,2699837,8099511,
 19319845,57959535,139480397,418441191,1014536117,
 3043608351,7426790749,22280372247,54669443141,
 164008329423]

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Last modified February 20 23:24 EST 2019. Contains 320362 sequences. (Running on oeis4.)