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A276667 as a simple table

n a(n)
0 1
1 -1
2 7
3 -31
4 381
5 -268275
6 190954395
7 -8940271725
8 336335206772565
9 -174821527924918875
10 54202314805255255275
11 -5543854406384412644150625
12 3114120189113602279924264875
13 -14151357141482747539875264868125
14 10216485085859695459247479126412709375

[1,-1,7,-31,381,-268275,190954395,-8940271725,
 336335206772565,-174821527924918875,
 54202314805255255275,-5543854406384412644150625,
 3114120189113602279924264875,
 -14151357141482747539875264868125,
 10216485085859695459247479126412709375]

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Last modified June 6 23:57 EDT 2024. Contains 373137 sequences. (Running on oeis4.)