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A264280 as a simple table

n a(n)
1 8
2 32
3 132
4 556
5 2324
6 9724
7 40692
8 170268
9 712468
10 2981244
11 12474676
12 52198876
13 218420308
14 913955132
15 3824342132
16 16002528156
17 66960773524
18 280189801724
19 1172422611892
20 4905870136668
21 20528060064468
22 85897351187644

[8,32,132,556,2324,9724,40692,170268,712468,
 2981244,12474676,52198876,218420308,913955132,
 3824342132,16002528156,66960773524,280189801724,
 1172422611892,4905870136668,20528060064468,
 85897351187644]

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Last modified September 29 15:17 EDT 2020. Contains 337432 sequences. (Running on oeis4.)