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A221792 as a simple table

n a(n)
1 1
2 3
3 7
4 17
5 36
6 109
7 265
8 762
9 2125
10 5964
11 17205
12 49989
13 145047
14 424155
15 1250298
16 3697457
17 10985390
18 32768938
19 98054446
20 294239322
21 885300000
22 2669959359
23 8069333311
24 24435519147

[1,3,7,17,36,109,265,762,2125,5964,17205,49989,
 145047,424155,1250298,3697457,10985390,32768938,
 98054446,294239322,885300000,2669959359,
 8069333311,24435519147]

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Last modified April 23 09:48 EDT 2024. Contains 371905 sequences. (Running on oeis4.)