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A181574 as a simple table

n a(n)
1 1
2 3
3 9
4 18
5 54
6 90
7 270
8 450
9 900
10 1500
11 4500
12 6300
13 18900
14 31500
15 52500
16 78750
17 236250
18 330750
19 992250
20 1389150
21 2315250
22 3858750
23 11576250
24 14883750
25 29767500
26 49612500
27 82687500
28 115762500
29 347287500
30 446512500
31 1339537500
32 1875352500
33 3125587500

[1,3,9,18,54,90,270,450,900,1500,4500,6300,18900,
 31500,52500,78750,236250,330750,992250,1389150,
 2315250,3858750,11576250,14883750,29767500,
 49612500,82687500,115762500,347287500,446512500,
 1339537500,1875352500,3125587500]

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Last modified September 16 15:06 EDT 2024. Contains 375976 sequences. (Running on oeis4.)