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A012532 as a simple table

na(n)
01
1-12
28848
3-45051072
4840261660928
5-41695924253002752
64537436258866404364288
7-951427888272965045905047552
8350377450379688317757442429616128
9-211362906255307072670284412178232246272
10197818950974274356812042952303539935429787648

[1,-12,8848,-45051072,840261660928,
 -41695924253002752,4537436258866404364288,
 -951427888272965045905047552,
 350377450379688317757442429616128,
 -211362906255307072670284412178232246272,
 197818950974274356812042952303539935429787648]