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A207249 as a simple table

n a(n)
1 6
2 36
3 102
4 370
5 1232
6 4238
7 14406
8 49164
9 167530
10 571202
11 1947168
12 6638170
13 22629802
14 77146700
15 262997994
16 896578158
17 3056494736
18 10419796218
19 35521783770
20 121096145300
21 412824884294
22 1407347734502
23 4797742864320

[6,36,102,370,1232,4238,14406,49164,167530,571202,
 1947168,6638170,22629802,77146700,262997994,
 896578158,3056494736,10419796218,35521783770,
 121096145300,412824884294,1407347734502,
 4797742864320]

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Last modified September 22 06:01 EDT 2021. Contains 347605 sequences. (Running on oeis4.)