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A121398 as a simple table

n a(n)
0 1
1 2
2 5
3 11
4 28
5 70
6 184
7 486
8 1313
9 3576
10 9851
11 27319
12 76286
13 214120
14 603858
15 1709719
16 4857959
17 13845948
18 39572583
19 113380652
20 325576692
21 936796592
22 2700456452
23 7797587816
24 22550434989
25 65308288346
26 189388557677

[1,2,5,11,28,70,184,486,1313,3576,9851,27319,
 76286,214120,603858,1709719,4857959,13845948,
 39572583,113380652,325576692,936796592,2700456452,
 7797587816,22550434989,65308288346,189388557677]

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Last modified May 5 05:35 EDT 2024. Contains 372257 sequences. (Running on oeis4.)