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A140991 as a simple table

n a(n)
0 0
1 1
2 3
3 1
4 5
5 7
6 27
7 61
8 153
9 331
10 719
11 1489
12 3069
13 6223
14 12579
15 25285
16 50753
17 101683
18 203607
19 407449
20 815205
21 1630711
22 3261803
23 6523981
24 13048425
25 26097307
26 52195167
27 104390881
28 208782413
29 417565471
30 835131699
31 1670264149

[0,1,3,1,5,7,27,61,153,331,719,1489,3069,6223,
 12579,25285,50753,101683,203607,407449,815205,
 1630711,3261803,6523981,13048425,26097307,
 52195167,104390881,208782413,417565471,835131699,
 1670264149]

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Last modified September 16 18:24 EDT 2019. Contains 327116 sequences. (Running on oeis4.)