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A328141 as a simple table

n a(n)
0 1
1 2
2 2
3 0
4 -4
5 -4
6 12
7 32
8 -40
9 -264
10 56
11 2432
12 1872
13 -24880
14 -47344
15 276096
16 938912
17 -3202528
18 -18225120
19 36217856
20 364270016
21 -323869248
22 -7609269568
23 -808015360
24 166595915136
25 185180268416
26 -3813121694848
27 -8442628405248
28 90698535660800
29 318649502602496
30 -2220909495899904

[1,2,2,0,-4,-4,12,32,-40,-264,56,2432,1872,-24880,
 -47344,276096,938912,-3202528,-18225120,36217856,
 364270016,-323869248,-7609269568,-808015360,
 166595915136,185180268416,-3813121694848,
 -8442628405248,90698535660800,318649502602496,
 -2220909495899904]

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Last modified August 15 02:47 EDT 2022. Contains 356122 sequences. (Running on oeis4.)