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A007216 as a simple table

n a(n)
0 1
1 0
2 4
3 0
4 16
5 24
6 122
7 348
8 1266
9 4464
10 16394
11 57932
12 215916
13 828348

[1,0,4,0,16,24,122,348,1266,4464,16394,57932,
 215916,828348]

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Last modified August 20 10:05 EDT 2019. Contains 326149 sequences. (Running on oeis4.)