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A053308 as a simple table

n a(n)
0 1
1 9
2 46
3 175
4 551
5 1518
6 3785
7 8735
8 18955
9 39130
10 77533
11 148487
12 276408
13 502415
14 895103
15 1568062
16 2708322
17 4622488
18 7811510
19 13091798
20 21791338
21 36067176
22 59419294
23 97522270
24 159571139
25 260459265
26 424302452
27 690141333

[1,9,46,175,551,1518,3785,8735,18955,39130,77533,
 148487,276408,502415,895103,1568062,2708322,
 4622488,7811510,13091798,21791338,36067176,
 59419294,97522270,159571139,260459265,424302452,
 690141333]

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Last modified April 24 08:28 EDT 2024. Contains 371927 sequences. (Running on oeis4.)