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A240926 as a simple table

n a(n)
0 4
1 5
2 9
3 20
4 49
5 125
6 324
7 845
8 2209
9 5780
10 15129
11 39605
12 103684
13 271445
14 710649
15 1860500
16 4870849
17 12752045
18 33385284
19 87403805
20 228826129
21 599074580
22 1568397609
23 4106118245
24 10749957124
25 28143753125
26 73681302249
27 192900153620
28 505019158609

[4,5,9,20,49,125,324,845,2209,5780,15129,39605,
 103684,271445,710649,1860500,4870849,12752045,
 33385284,87403805,228826129,599074580,1568397609,
 4106118245,10749957124,28143753125,73681302249,
 192900153620,505019158609]

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Last modified August 3 07:58 EDT 2021. Contains 346435 sequences. (Running on oeis4.)