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A221370 as a simple table

n a(n)
0 1
1 1
2 4
3 21
4 183
5 2362
6 42449
7 1012897
8 30961412
9 1179154241
10 54727128731
11 3040047461530
12 199109235070645
13 15182265283487213
14 1333242114217704924
15 133577535961042535669
16 15144191953510005439455
17 1928873660857769308675146
18 274228718414760130917382185 

[1,1,4,21,183,2362,42449,1012897,30961412,
 1179154241,54727128731,3040047461530,
 199109235070645,15182265283487213,
 1333242114217704924,133577535961042535669,
 15144191953510005439455,1928873660857769308675146,
 274228718414760130917382185]

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)