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A026555 as a simple table

n a(n)
2 1
3 2
4 7
5 13
6 40
7 76
8 226
9 434
10 1279
11 2470
12 7267
13 14085
14 41462
15 80584
16 237484
17 462620
18 1365014
19 2664276
20 7870226
21 15387670
22 45501743
23 89097932
24 263707094
25 517058502
26 1531614109
27 3006637946
28 8912678569
29 17514547015
30 51952990090

[1,2,7,13,40,76,226,434,1279,2470,7267,14085,
 41462,80584,237484,462620,1365014,2664276,7870226,
 15387670,45501743,89097932,263707094,517058502,
 1531614109,3006637946,8912678569,17514547015,
 51952990090]

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Last modified April 17 18:43 EDT 2024. Contains 371765 sequences. (Running on oeis4.)