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A133356 as a simple table

n a(n)
0 1
1 1
2 18
3 52
4 392
5 1616
6 9504
7 44864
8 241792
9 1201408
10 6271488
11 31765504
12 163874816
13 835997696
14 4293992448
15 21963948032
16 112631775232
17 576686718976
18 2955481841664
19 15137951186944
20 77563611840512
21 397334442672128

[1,1,18,52,392,1616,9504,44864,241792,1201408,
 6271488,31765504,163874816,835997696,4293992448,
 21963948032,112631775232,576686718976,
 2955481841664,15137951186944,77563611840512,
 397334442672128]

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Last modified March 29 06:44 EDT 2024. Contains 371265 sequences. (Running on oeis4.)