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A018013 as a simple table

n a(n)
0 1
1 2
2 6
3 13
4 31
5 72
6 169
7 397
8 934
9 2197
10 5166
11 12147
12 28561
13 67156
14 157907
15 371293
16 873034
17 2052795
18 4826809
19 11349443
20 26686340
21 62748517
22 147542765
23 346922420
24 815730721
25 1918055940
26 4509991465
27 10604499373
28 24934727222
29 58629889045

[1,2,6,13,31,72,169,397,934,2197,5166,12147,28561,
 67156,157907,371293,873034,2052795,4826809,
 11349443,26686340,62748517,147542765,346922420,
 815730721,1918055940,4509991465,10604499373,
 24934727222,58629889045]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)