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A003954 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 2572306572
10 28295372292
11 311249095212
12 3423740047332
13 37661140520652
14 414272545727172
15 4556998002998892
16 50126978032987812 

[1,12,132,1452,15972,175692,1932612,21258732,
 233846052,2572306572,28295372292,311249095212,
 3423740047332,37661140520652,414272545727172,
 4556998002998892,50126978032987812]

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Last modified May 17 19:53 EDT 2024. Contains 372607 sequences. (Running on oeis4.)