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A211327 as a simple table

n a(n)
1 15
2 33
3 69
4 143
5 293
6 595
7 1205
8 2427
9 4885
10 9803
11 19669
12 39403
13 78933
14 157995
15 316245
16 632747
17 1266005
18 2532523
19 5066069
20 10133163
21 20268373
22 40538795
23 81081685
24 162167467
25 324343125
26 648694443
27 1297405269
28 2594826923
29 5189686613

[15,33,69,143,293,595,1205,2427,4885,9803,19669,
 39403,78933,157995,316245,632747,1266005,2532523,
 5066069,10133163,20268373,40538795,81081685,
 162167467,324343125,648694443,1297405269,
 2594826923,5189686613]

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Last modified August 25 16:14 EDT 2019. Contains 326324 sequences. (Running on oeis4.)