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A279172 as a simple table

na(n)
00
11
21
3-1
4-3
53
617
7-17
8-155
9155
102073
11-2073
12-38227
1338227
14929569
15-929569
16-28820619
1728820619
181109652905
19-1109652905
20-51943281731
2151943281731
222905151042481
23-2905151042481
24-191329672483963
25191329672483963
2614655626154768697
27-14655626154768697

[0,1,1,-1,-3,3,17,-17,-155,155,2073,-2073,-38227,
 38227,929569,-929569,-28820619,28820619,
 1109652905,-1109652905,-51943281731,51943281731,
 2905151042481,-2905151042481,-191329672483963,
 191329672483963,14655626154768697,
 -14655626154768697]