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A129743 as a simple table

n a(n)
1 2
2 12
3 50
4 192
5 722
6 2700
7 10082
8 37632
9 140450
10 524172
11 1956242
12 7300800
13 27246962
14 101687052
15 379501250
16 1416317952
17 5285770562
18 19726764300
19 73621286642
20 274758382272
21 1025412242450
22 3826890587532
23 14282150107682

[2,12,50,192,722,2700,10082,37632,140450,524172,
 1956242,7300800,27246962,101687052,379501250,
 1416317952,5285770562,19726764300,73621286642,
 274758382272,1025412242450,3826890587532,
 14282150107682]

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Last modified April 19 02:04 EDT 2024. Contains 371782 sequences. (Running on oeis4.)