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A150032 as a simple table

n a(n)
0 1
1 2
2 6
3 16
4 64
5 216
6 856
7 2976
8 12832
9 48448
10 205888
11 782464
12 3480192
13 13840256
14 60745088
15 241676800
16 1093548544
17 4483687424
18 20050686976
19 82059288576
20 375415300096
21 1570813652992
22 7111318892544
23 29671917535232
24 136795784593408
25 580782992326656
26 2652281254117376
27 11224180146405376

[1,2,6,16,64,216,856,2976,12832,48448,205888,
 782464,3480192,13840256,60745088,241676800,
 1093548544,4483687424,20050686976,82059288576,
 375415300096,1570813652992,7111318892544,
 29671917535232,136795784593408,580782992326656,
 2652281254117376,11224180146405376]

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Last modified January 19 17:26 EST 2022. Contains 350466 sequences. (Running on oeis4.)