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A307595 as a simple table

n a(n)
0 1
1 2
2 6
3 27
4 156
5 1097
6 9054
7 85603
8 910840
9 10760273
10 139634314
11 1973272939
12 30150497652
13 495099175625
14 8692428215982
15 162444828319579
16 3218819701723504
17 67394536781529505
18 1486511667262146322
19 34446575597797488843
20 836556499627929889964
21 21244918075422301609817

[1,2,6,27,156,1097,9054,85603,910840,10760273,
 139634314,1973272939,30150497652,495099175625,
 8692428215982,162444828319579,3218819701723504,
 67394536781529505,1486511667262146322,
 34446575597797488843,836556499627929889964,
 21244918075422301609817]

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Last modified July 16 19:40 EDT 2024. Contains 374358 sequences. (Running on oeis4.)