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A077961 as a simple table

na(n)
01
10
2-1
31
41
5-2
60
73
8-2
9-3
105
111
12-8
134
149
15-12
16-5
1721
18-7
19-26
2028
2119
22-54
239
2473
25-63
26-64
27136
281
29-200
30135
31201
32-335
33-66
34536
35-269
36-602
37805
38333
39-1407
40472
411740
42-1879
43-1268
443619
45-611
46-4887
474230
484276
49-9117
50-46
5113393
52-9071
53-13439
5422464
554368
56-35903
5718096
5840271
59-53999

[1,0,-1,1,1,-2,0,3,-2,-3,5,1,-8,4,9,-12,-5,21,-7,
 -26,28,19,-54,9,73,-63,-64,136,1,-200,135,201,
 -335,-66,536,-269,-602,805,333,-1407,472,1740,
 -1879,-1268,3619,-611,-4887,4230,4276,-9117,-46,
 13393,-9071,-13439,22464,4368,-35903,18096,40271,
 -53999]