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A246854
as a simple table
n
a(n)
1
1
2
4
3
26
4
122
5
146
6
458
7
746
8
3746
9
47612
10
16065500
11
388978292
12
5313509288
13
64278616556
[1,4,26,122,146,458,746,3746,47612,16065500, 388978292,5313509288,64278616556]
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Last modified April 25 11:37 EDT 2024. Contains 371968 sequences. (Running on oeis4.)