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A227382 as a simple table

n a(n)
1 4
2 15
3 54
4 185
5 587
6 1704
7 4532
8 11126
9 25430
10 54568
11 110768
12 214130
13 396492
14 706695
15 1217599
16 2035257
17 3310713
18 5254953
19 8157605
20 12410055
21 18533721
22 27214306
23 39342934
24 56065160
25 78838936
26 109502710
27 150354934
28 204246360
29 274686610

[4,15,54,185,587,1704,4532,11126,25430,54568,
 110768,214130,396492,706695,1217599,2035257,
 3310713,5254953,8157605,12410055,18533721,
 27214306,39342934,56065160,78838936,109502710,
 150354934,204246360,274686610]

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Last modified May 12 00:47 EDT 2024. Contains 372431 sequences. (Running on oeis4.)