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A158516 as a simple table

n a(n)
0 1
1 12
2 142
3 1656
4 19020
5 214992
6 2389704
7 26096544
8 279702672
9 2938887360
10 30232000224
11 304006255488
12 2982971060928
13 28499502599424
14 264436783608960
15 2375255330523648
16 20569960458014976
17 170831354919422976
18 1350597603460566528
19 10057242464427571200

[1,12,142,1656,19020,214992,2389704,26096544,
 279702672,2938887360,30232000224,304006255488,
 2982971060928,28499502599424,264436783608960,
 2375255330523648,20569960458014976,
 170831354919422976,1350597603460566528,
 10057242464427571200]

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Last modified May 12 21:06 EDT 2021. Contains 343829 sequences. (Running on oeis4.)