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A122048 as a simple table

na(n)
00
11
22
31
43
51
611
72
865
93
10518
11-38
125177
13-936
1462162
15-17345
16871204
17-322337
1813956609
19-6350933
20251541299
21-134624336
225037176913
23-3078652355
24110952516422
25-75846181078
262665939046483
27-2007107043372
2869390261389636
29-56857829217527
301944934425953180

[0,1,2,1,3,1,11,2,65,3,518,-38,5177,-936,62162,
 -17345,871204,-322337,13956609,-6350933,251541299,
 -134624336,5037176913,-3078652355,110952516422,
 -75846181078,2665939046483,-2007107043372,
 69390261389636,-56857829217527,1944934425953180]