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A326551 as a simple table

na(n)
01
1-2
256
3-8336
43985792
5-4679517952
611427218287616
7-51793067942397952
8400951893341645930496
9-4975999084909976839454720
1094178912073481319162642169856
11-2610878440961060713599511173791744
12102545703927828194073741484514193965056
13-5548919569628098800740786379865766154469376
14403949193167852851803947801218003477783686152192

[1,-2,56,-8336,3985792,-4679517952,11427218287616,
 -51793067942397952,400951893341645930496,
 -4975999084909976839454720,
 94178912073481319162642169856,
 -2610878440961060713599511173791744,
 102545703927828194073741484514193965056,
 -5548919569628098800740786379865766154469376,
 403949193167852851803947801218003477783686152192]