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A217143 as a simple table

n a(n)
0 1
1 2
2 6
3 31
4 256
5 2960
6 44169
7 813298
8 17952898
9 465148507
10 13915349132
11 474372594032
12 18228772272441
13 782443669319410
14 37224994809379094
15 1949799331997896119
16 111783178753323665728
17 6978369826387194664144
18 472207139326449254997425

[1,2,6,31,256,2960,44169,813298,17952898,
 465148507,13915349132,474372594032,18228772272441,
 782443669319410,37224994809379094,
 1949799331997896119,111783178753323665728,
 6978369826387194664144,472207139326449254997425]

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Last modified April 25 09:22 EDT 2024. Contains 371967 sequences. (Running on oeis4.)