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A009627 as a simple table

n a(n)
0 0
1 2
2 8
3 8
4 -2304
5 -183776
6 -15141248
7 -1461427328
8 -166452797440
9 -21941424508416
10 -3231615038191616
11 -498564870033053696
12 -67544768806700253184
13 -435077810759086759936
14 7017404598452791761076224

[0,2,8,8,-2304,-183776,-15141248,-1461427328,
 -166452797440,-21941424508416,-3231615038191616,
 -498564870033053696,-67544768806700253184,
 -435077810759086759936,7017404598452791761076224]

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Last modified May 14 17:50 EDT 2024. Contains 372533 sequences. (Running on oeis4.)