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A027212 as a simple table

n a(n)
0 1
1 3
2 8
3 23
4 55
5 144
6 328
7 816
8 1808
9 4358
10 9485
11 22377
12 48097
13 111720
14 237917
15 546161
16 1154827
17 2626624
18 5522464
19 12467540
20 26092324
21 58546544
22 122059348
23 272479782
24 566242186
25 1258568324
26 2608232758
27 5775620396
28 11940756076

[1,3,8,23,55,144,328,816,1808,4358,9485,22377,
 48097,111720,237917,546161,1154827,2626624,
 5522464,12467540,26092324,58546544,122059348,
 272479782,566242186,1258568324,2608232758,
 5775620396,11940756076]

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Last modified October 28 17:59 EDT 2021. Contains 348329 sequences. (Running on oeis4.)