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A009464 as a simple table

n a(n)
0 0
1 1
2 1
3 1
4 -6
5 -25
6 -155
7 -275
8 -1764
9 11489
10 -10787
11 1096709
12 -3898114
13 91374439
14 -918833799
15 12516903737
16 -187393123592
17 2698255174081
18 -45136473911271
19 755066948613897
20 -13675842977455934
21 257889498152762215

[0,1,1,1,-6,-25,-155,-275,-1764,11489,-10787,
 1096709,-3898114,91374439,-918833799,12516903737,
 -187393123592,2698255174081,-45136473911271,
 755066948613897,-13675842977455934,
 257889498152762215]

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Last modified September 25 15:49 EDT 2020. Contains 337344 sequences. (Running on oeis4.)