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A316696
as a simple table
n
a(n)
1
1
2
2
3
4
4
11
5
27
6
80
7
218
8
654
9
1923
10
5924
11
18310
12
58176
13
186341
14
606814
15
1993420
16
6618160
17
22134640
[1,2,4,11,27,80,218,654,1923,5924,18310,58176, 186341,606814,1993420,6618160,22134640]
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Last modified September 16 03:13 EDT 2024. Contains 375959 sequences. (Running on oeis4.)