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A162649 as a simple table

n a(n)
0 1
1 1
2 1
3 4
4 37
5 276
6 2221
7 26888
8 397097
9 6055696
10 103023481
11 2047621632
12 44856857101
13 1051415079872
14 26792169643877
15 743266588537216
16 22085066412427729
17 698048232173484288
18 23495515539312273265

[1,1,1,4,37,276,2221,26888,397097,6055696,
 103023481,2047621632,44856857101,1051415079872,
 26792169643877,743266588537216,22085066412427729,
 698048232173484288,23495515539312273265]

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Last modified January 20 18:38 EST 2022. Contains 350472 sequences. (Running on oeis4.)