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A159949 as a simple table

na(n)
01
11
2-287
3-863
4247105
51241281
6-354589919
7-2499523487
8712353753217
96471255867265
10-1839949672471199
11-20477166570194399
125808483395818564033
1376577571062410406977
14-21670384262882293332575
15-330431150786521054263839
1693285628864864986142460161

[1,1,-287,-863,247105,1241281,-354589919,
 -2499523487,712353753217,6471255867265,
 -1839949672471199,-20477166570194399,
 5808483395818564033,76577571062410406977,
 -21670384262882293332575,
 -330431150786521054263839,
 93285628864864986142460161]