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A297585 as a simple table

n a(n)
1 1
2 20
3 102
4 254
5 1017
6 5263
7 20771
8 76340
9 320326
10 1353690
11 5389975
12 21589173
13 88747475
14 362176212
15 1462891858
16 5938102840
17 24195113809
18 98303450371
19 398918472477
20 1621218682358
21 6590614515512
22 26773290621678
23 108760910018039

[1,20,102,254,1017,5263,20771,76340,320326,
 1353690,5389975,21589173,88747475,362176212,
 1462891858,5938102840,24195113809,98303450371,
 398918472477,1621218682358,6590614515512,
 26773290621678,108760910018039]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)