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A220564 as a simple table

n a(n)
1 1
2 13
3 64
4 430
5 2604
6 16310
7 101052
8 628269
9 3901815
10 24240377
11 150578968
12 935414825
13 5810847665
14 36097422853
15 224239670624
16 1392992694942
17 8653368270212
18 53755331997318
19 333931897912068
20 2074408410086741

[1,13,64,430,2604,16310,101052,628269,3901815,
 24240377,150578968,935414825,5810847665,
 36097422853,224239670624,1392992694942,
 8653368270212,53755331997318,333931897912068,
 2074408410086741]

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Last modified February 25 19:10 EST 2024. Contains 370332 sequences. (Running on oeis4.)