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A133294 as a simple table

n a(n)
0 1
1 1
2 12
3 34
4 188
5 716
6 3312
7 13784
8 60688
9 259216
10 1125312
11 4842784
12 20938688
13 90305216
14 389997312
15 1683046784
16 7266066688
17 31362601216
18 135385869312
19 584397750784
20 2522654194688
21 10889285897216
22 47005113741312

[1,1,12,34,188,716,3312,13784,60688,259216,
 1125312,4842784,20938688,90305216,389997312,
 1683046784,7266066688,31362601216,135385869312,
 584397750784,2522654194688,10889285897216,
 47005113741312]

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Last modified April 24 10:11 EDT 2024. Contains 371935 sequences. (Running on oeis4.)