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A145997 as a simple table

n a(n)
1 1
2 1
3 2
4 5
5 12
6 51
7 317
8 2654
9 30351
10 489559
11 11104536
12 350752586
13 15493779226
14 954798521885
15 82299096564021
16 9909284745619443
17 1667319814728326908
18 391914922807260266420
19 128722643370894309970881

[1,1,2,5,12,51,317,2654,30351,489559,11104536,
 350752586,15493779226,954798521885,82299096564021,
 9909284745619443,1667319814728326908,
 391914922807260266420,128722643370894309970881]

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Last modified June 8 21:00 EDT 2024. Contains 373227 sequences. (Running on oeis4.)