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A228791 as a simple table

n a(n)
1 2
2 8
3 36
4 156
5 672
6 2892
7 12444
8 53544
9 230388
10 991308
11 4265376
12 18352956
13 78968652
14 339784392
15 1462016004
16 6290726844
17 27067586208
18 116465750508
19 501125993916
20 2156232718056
21 9277785608532
22 39920229888492
23 171767792616864

[2,8,36,156,672,2892,12444,53544,230388,991308,
 4265376,18352956,78968652,339784392,1462016004,
 6290726844,27067586208,116465750508,501125993916,
 2156232718056,9277785608532,39920229888492,
 171767792616864]

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Last modified September 23 19:57 EDT 2023. Contains 365554 sequences. (Running on oeis4.)