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A165266 as a simple table

n a(n)
0 1
1 12
2 132
3 1452
4 15972
5 175692
6 1932612
7 21258732
8 233846052
9 2572306506
10 28295370840
11 311249071320
12 3423739697400
13 37661135713080
14 414272482302360
15 4556997189369240
16 50126967807537720
17 551396631852151800 

[1,12,132,1452,15972,175692,1932612,21258732,
 233846052,2572306506,28295370840,311249071320,
 3423739697400,37661135713080,414272482302360,
 4556997189369240,50126967807537720,
 551396631852151800]

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Last modified June 5 18:30 EDT 2024. Contains 373107 sequences. (Running on oeis4.)