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A015110 as a simple table

na(n)
01
11
21
31
4-2
51
61
77
87
91
101
11-20
1270
13-20
141
151
1661
17610
18610
1961
201
211
22-182
235551
24-15860
255551
26-182
271
281
29547
3049777
31433771
32433771
3349777
34547
351
361
37-1640
38448540
39-11662040
4035569222
41-11662040
42448540
43-1640
441
451
464921
474035220
48315323620

[1,1,1,1,-2,1,1,7,7,1,1,-20,70,-20,1,1,61,610,610,
 61,1,1,-182,5551,-15860,5551,-182,1,1,547,49777,
 433771,433771,49777,547,1,1,-1640,448540,
 -11662040,35569222,-11662040,448540,-1640,1,1,
 4921,4035220,315323620]