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A155307 as a simple table

n a(n)
4 1
5 4
6 13
7 37
8 146
9 620
10 2737
11 17298
12 136979
13 1185666
14 12752003
15 161758550
16 2364549128
17 42702118766

[1,4,13,37,146,620,2737,17298,136979,1185666,
 12752003,161758550,2364549128,42702118766]

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Last modified September 9 09:37 EDT 2024. Contains 375764 sequences. (Running on oeis4.)