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A001334 as a simple table

n a(n)
0 1
1 6
2 30
3 138
4 618
5 2730
6 11946
7 51882
8 224130
9 964134
10 4133166
11 17668938
12 75355206
13 320734686
14 1362791250
15 5781765582
16 24497330322
17 103673967882
18 438296739594
19 1851231376374
20 7812439620678
21 32944292555934
22 138825972053046

[1,6,30,138,618,2730,11946,51882,224130,964134,
 4133166,17668938,75355206,320734686,1362791250,
 5781765582,24497330322,103673967882,438296739594,
 1851231376374,7812439620678,32944292555934,
 138825972053046]

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Last modified May 13 23:15 EDT 2024. Contains 372524 sequences. (Running on oeis4.)