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A005016 as a simple table

n a(n)
0 1
1 1
2 3
3 15
4 159
5 3903
6 214143
7 25098495
8 6110517759
9 3040867308543
10 3064498377754623
11 6220489664197758975
12 25354161321592779612159
13 207142125428402158677213183
14 3388838467537660347660899221503

[1,1,3,15,159,3903,214143,25098495,6110517759,
 3040867308543,3064498377754623,
 6220489664197758975,25354161321592779612159,
 207142125428402158677213183,
 3388838467537660347660899221503]

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Last modified May 9 05:09 EDT 2021. Contains 343688 sequences. (Running on oeis4.)