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A006738 as a simple table

n a(n)
0 0
1 2
2 12
3 54
4 206
5 712
6 2294
7 7024
8 20656
9 58842
10 163250
11 443062
12 1180156
13 3092964
14 7993116
15 20401250
16 51502616
17 128748512
18 319010540
19 784179992
20 1913668608
21 4639155964
22 11178566462
23 26784974870
24 63851541584

[0,2,12,54,206,712,2294,7024,20656,58842,163250,
 443062,1180156,3092964,7993116,20401250,51502616,
 128748512,319010540,784179992,1913668608,
 4639155964,11178566462,26784974870,63851541584]

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Last modified August 15 01:28 EDT 2020. Contains 336484 sequences. (Running on oeis4.)