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A103468
as a simple table
n
a(n)
1
1
2
1
3
4
4
19
5
127
6
985
7
8350
8
73675
9
664411
10
6078768
11
56198759
12
523924389
13
4918127659
[1,1,4,19,127,985,8350,73675,664411,6078768, 56198759,523924389,4918127659]
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Last modified July 21 18:17 EDT 2024. Contains 374475 sequences. (Running on oeis4.)