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A009450 as a simple table

n a(n)
0 0
1 1
2 -1
3 0
4 4
5 -19
6 74
7 -290
8 1184
9 -5059
10 22124
11 -93580
12 320464
13 36401
14 -19721976
15 335907130
16 -4599046656
17 59558294361
18 -766372344976
19 10001627076840
20 -133693424522176
21 1839667828548821
22 -26126020673633376

[0,1,-1,0,4,-19,74,-290,1184,-5059,22124,-93580,
 320464,36401,-19721976,335907130,-4599046656,
 59558294361,-766372344976,10001627076840,
 -133693424522176,1839667828548821,
 -26126020673633376]

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Last modified May 11 12:00 EDT 2024. Contains 372409 sequences. (Running on oeis4.)