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A279553 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 15
5 50
6 178
7 663
8 2552
9 10071
10 40528
11 165682
12 686151
13 2872576
14 12137278
15 51690255
16 221657999
17 956265050
18 4147533262
19 18074429421
20 79102157060
21 347519074010
22 1532070899412
23 6775687911920
24 30052744139440
25 133649573395725
26 595816470717728

[1,1,2,5,15,50,178,663,2552,10071,40528,165682,
 686151,2872576,12137278,51690255,221657999,
 956265050,4147533262,18074429421,79102157060,
 347519074010,1532070899412,6775687911920,
 30052744139440,133649573395725,595816470717728]

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Last modified April 23 07:34 EDT 2024. Contains 371905 sequences. (Running on oeis4.)