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A089957
as a simple table
n
a(n)
0
1
1
20
2
400
3
1862
4
9825
5
53516
6
311642
7
2018993
8
12150635
9
69284509
10
382383387
11
1994236773
[1,20,400,1862,9825,53516,311642,2018993,12150635, 69284509,382383387,1994236773]
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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)
