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A267980 as a simple table

n a(n)
0 1
1 5
2 36
3 325
4 3332
5 37044
6 435600
7 5337189
8 67481700
9 874644628
10 11566330256
11 155510720820
12 2120180615056
13 29250721730000
14 407699870875200
15 5733391194015525
16 81260713808878500
17 1159736238615942900
18 16654127124851370000
19 240487877070131159700

[1,5,36,325,3332,37044,435600,5337189,67481700,
 874644628,11566330256,155510720820,2120180615056,
 29250721730000,407699870875200,5733391194015525,
 81260713808878500,1159736238615942900,
 16654127124851370000,240487877070131159700]

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Last modified August 2 02:14 EDT 2024. Contains 374819 sequences. (Running on oeis4.)