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A124948 as a simple table

n a(n)
0 1
1 20
2 94
3 350
4 1522
5 6670
6 29992
7 136548
8 628362
9 2914622
10 13606624
11 63855108
12 300982084
13 1423941500
14 6758032522
15 32161829650
16 153427657050
17 733475019582
18 3513035370640
19 16854198764892
20 80981882536292
21 389635048394172

[1,20,94,350,1522,6670,29992,136548,628362,
 2914622,13606624,63855108,300982084,1423941500,
 6758032522,32161829650,153427657050,733475019582,
 3513035370640,16854198764892,80981882536292,
 389635048394172]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)