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A005754 as a simple table

n a(n)
1 1
2 1
3 2
4 7
5 24
6 95
7 388
8 1650
9 7183
10 31965
11 144502
12 662241
13 3068942
14 14358678
15 67729973
16 321759461
17 1538076291
18 7392775328
19 35707198905
20 173221206284
21 843634142771
22 4123376617009
23 20218897206392
24 99436453714990
25 490355165178472
26 2424146632435852

[1,1,2,7,24,95,388,1650,7183,31965,144502,662241,
 3068942,14358678,67729973,321759461,1538076291,
 7392775328,35707198905,173221206284,843634142771,
 4123376617009,20218897206392,99436453714990,
 490355165178472,2424146632435852]

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Last modified May 13 15:39 EDT 2024. Contains 372521 sequences. (Running on oeis4.)