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A301560 as a simple table

n a(n)
1 0
2 1
3 5
4 17
5 63
6 231
7 858
8 3217
9 12155
10 46189
11 176358
12 676039
13 2600150
14 10029150
15 38779380
16 150270097
17 583401555
18 2268783825
19 8836315950
20 34461632205
21 134564468610
22 526024740930
23 2058357681900
24 8061900920775
25 31602651609438
26 123979633237026
27 486734856412028

[0,1,5,17,63,231,858,3217,12155,46189,176358,
 676039,2600150,10029150,38779380,150270097,
 583401555,2268783825,8836315950,34461632205,
 134564468610,526024740930,2058357681900,
 8061900920775,31602651609438,123979633237026,
 486734856412028]

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Last modified September 6 21:39 EDT 2024. Contains 375728 sequences. (Running on oeis4.)