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A101559 as a simple table

na(n)
11
21
3-2
41
5-4
64
71
8-7
915
10-10
111
12-11
1342
14-65
1534
161
17-16
1896
19-267
20339
21-154
221
23-22
24191
25-831
261891
27-2103
28874
291
30-29
31344
32-2151
337600
34-15023
3515171
36-5914
371
38-37
39575
40-4880
4124600
42-74884
43133147
44-124755
4546234
461
47-46
48907
49-10025
5068153
51-293925
52798564
53-1305847
541151331
55-409114
561
57-56

[1,1,-2,1,-4,4,1,-7,15,-10,1,-11,42,-65,34,1,-16,
 96,-267,339,-154,1,-22,191,-831,1891,-2103,874,1,
 -29,344,-2151,7600,-15023,15171,-5914,1,-37,575,
 -4880,24600,-74884,133147,-124755,46234,1,-46,907,
 -10025,68153,-293925,798564,-1305847,1151331,
 -409114,1,-56]