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A103193 as a simple table

na(n)
00
11
21
31
41
51
65
71
8-5
9-7
101
11-1
1233
131
14-1
15-255
161
17255
181
191
20-2049
2116385
221
23-32769
24262145
251
26-524289
271
281
29-8388609
30-268435455
311
32268435455
338589934593
341
35-1
36-549755813887
371
38-1
3970368744177665
401
41-70368744177665
421
431
449007199254740991
45-1152921504606846975

[0,1,1,1,1,1,5,1,-5,-7,1,-1,33,1,-1,-255,1,255,1,
 1,-2049,16385,1,-32769,262145,1,-524289,1,1,
 -8388609,-268435455,1,268435455,8589934593,1,-1,
 -549755813887,1,-1,70368744177665,1,
 -70368744177665,1,1,9007199254740991,
 -1152921504606846975]