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A156196 as a simple table

n a(n)
0 1
1 -1
2 -12
3 73
4 732
5 -3721
6 -109332
7 3113561
8 30406812
9 -278347351
10 -13587056052
11 304035474763
12 8904250650492
13 -117738154950781
14 -8045727017033172
15 982026184893828457
16 9586782871360007772
17 -165767101918545512011
18 -14564334832981893064692

[1,-1,-12,73,732,-3721,-109332,3113561,30406812,
 -278347351,-13587056052,304035474763,
 8904250650492,-117738154950781,-8045727017033172,
 982026184893828457,9586782871360007772,
 -165767101918545512011,-14564334832981893064692]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)