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A286329 as a simple table

na(n)
11
2-104
36444
4-311744
513018830
6-493025760
717411253944
8-583472867840
918770817643749
10-584450497233840
1117716721171780388
12-525192444572011776
1315276991910654781638
14-437229195695756884672
1512338641730218147891560
16-343932138212987023388672

[1,-104,6444,-311744,13018830,-493025760,
 17411253944,-583472867840,18770817643749,
 -584450497233840,17716721171780388,
 -525192444572011776,15276991910654781638,
 -437229195695756884672,12338641730218147891560,
 -343932138212987023388672]