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A122231
as a simple table
n
a(n)
1
4
2
17
3
64
4
183
5
560
6
2036
7
6397
8
20414
9
79204
10
262714
11
870210
12
3640880
[4,17,64,183,560,2036,6397,20414,79204,262714, 870210,3640880]
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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)
