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A309184 as a simple table

n a(n)
1 1
2 4
3 31
4 244
5 2126
6 19780
7 192130
8 1922740
9 19692535
10 205444504
11 2175519380
12 23322657460
13 252631900236
14 2760767859784
15 30400169157656
16 336977765092788
17 3757141504436393
18 42107201575818028
19 474084628585822413
20 5359833704140818744
21 60823006052351729266

[1,4,31,244,2126,19780,192130,1922740,19692535,
 205444504,2175519380,23322657460,252631900236,
 2760767859784,30400169157656,336977765092788,
 3757141504436393,42107201575818028,
 474084628585822413,5359833704140818744,
 60823006052351729266]

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Last modified March 29 06:57 EDT 2024. Contains 371265 sequences. (Running on oeis4.)