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A121199 as a simple table

n a(n)
0 2
1 24
2 98
3 504
4 3074
5 19992
6 133346
7 901752
8 6155522
9 42306840
10 292240994
11 2026155000
12 14085427970
13 98109713688
14 684326588642
15 4778079088248
16 33385518460418
17 233393453440536
18 1632228295176290
19 11417968671701496

[2,24,98,504,3074,19992,133346,901752,6155522,
 42306840,292240994,2026155000,14085427970,
 98109713688,684326588642,4778079088248,
 33385518460418,233393453440536,1632228295176290,
 11417968671701496]

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Last modified January 19 17:45 EST 2019. Contains 319309 sequences. (Running on oeis4.)