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A180426 as a simple table

n a(n)
1 3
2 30
3 265
4 2351
5 21062
6 191630
7 1766955
8 16465551
9 154749588
10 1464326721
11 13932672360
12 133165432342
13 1277568139729
14 12295904124627
15 118665023703067
16 1147922359531155

[3,30,265,2351,21062,191630,1766955,16465551,
 154749588,1464326721,13932672360,133165432342,
 1277568139729,12295904124627,118665023703067,
 1147922359531155]

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Last modified April 24 08:59 EDT 2024. Contains 371935 sequences. (Running on oeis4.)