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A220707 as a simple table

n a(n)
1 1
2 13
3 48
4 298
5 1520
6 8338
7 44976
8 244029
9 1322551
10 7171769
11 38885648
12 210854845
13 1143330649
14 6199601829
15 33616711696
16 182283373322
17 988413912488
18 5359579124490
19 29061800830768
20 157584813722329
21 854488462716575

[1,13,48,298,1520,8338,44976,244029,1322551,
 7171769,38885648,210854845,1143330649,6199601829,
 33616711696,182283373322,988413912488,
 5359579124490,29061800830768,157584813722329,
 854488462716575]

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Last modified May 16 08:07 EDT 2021. Contains 343940 sequences. (Running on oeis4.)