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A013186 as a simple table

n a(n)
0 0
1 1
2 0
3 0
4 0
5 8
6 -48
7 392
8 -2240
9 20096
10 -147200
11 1754368
12 -16873472
13 241340032
14 -2769127424
15 44833033216
16 -593918959616
17 10840711614464
18 -164204798541824
19 3348758074142720
20 -57147730941444096

[0,1,0,0,0,8,-48,392,-2240,20096,-147200,1754368,
 -16873472,241340032,-2769127424,44833033216,
 -593918959616,10840711614464,-164204798541824,
 3348758074142720,-57147730941444096]

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)