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A081900 as a simple table

n a(n)
0 1
1 9
2 71
3 519
4 3606
5 24150
6 157250
7 1001250
8 6259375
9 38534375
10 234140625
11 1406640625
12 8367187500
13 49335937500
14 288632812500
15 1676757812500
16 9678955078125
17 55548095703125
18 317108154296875
19 1801483154296875

[1,9,71,519,3606,24150,157250,1001250,6259375,
 38534375,234140625,1406640625,8367187500,
 49335937500,288632812500,1676757812500,
 9678955078125,55548095703125,317108154296875,
 1801483154296875]

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)