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A333957 as a simple table

na(n)
11
2-3
323
4-292
55194
6-118879
73327092
8-110077602
94202995203
10-181898058107
118799087726483
12-470477273391491
1327552899058423712
14-1753972172620598718
15120590533350099961096
16-8905268067453051058302
17702994242229769687066025
18-59076500305914641133294712

[1,-3,23,-292,5194,-118879,3327092,-110077602,
 4202995203,-181898058107,8799087726483,
 -470477273391491,27552899058423712,
 -1753972172620598718,120590533350099961096,
 -8905268067453051058302,702994242229769687066025,
 -59076500305914641133294712]