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A149019 as a simple table

n a(n)
0 1
1 1
2 3
3 9
4 35
5 131
6 539
7 2178
8 9466
9 39944
10 178102
11 779382
12 3535378
13 15837243
14 72810285
15 331162556
16 1538465914
17 7082275082
18 33160005984
19 154175852070
20 726421380590
21 3403523284138
22 16121460813022
23 75997260757594
24 361573678921754
25 1713363345487223
26 8182019330408203
27 38944062120025760

[1,1,3,9,35,131,539,2178,9466,39944,178102,779382,
 3535378,15837243,72810285,331162556,1538465914,
 7082275082,33160005984,154175852070,726421380590,
 3403523284138,16121460813022,75997260757594,
 361573678921754,1713363345487223,8182019330408203,
 38944062120025760]

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Last modified April 25 13:38 EDT 2024. Contains 371970 sequences. (Running on oeis4.)