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A289295 as a simple table

na(n)
01
1-12
2-98388
3-20312544
4-5889254484
5-2083830070392
6-810894400450848
7-334381509272710464
8-143464412162723380308
9-63364234685240118242604
10-28614423885137875351570248
11-13150804531745894256074689056

[1,-12,-98388,-20312544,-5889254484,
 -2083830070392,-810894400450848,
 -334381509272710464,-143464412162723380308,
 -63364234685240118242604,
 -28614423885137875351570248,
 -13150804531745894256074689056]