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A248942 as a simple table

na(n)
020
119
217
314
410
55
6-1
76
8-2
97
10-3
118
12-4
139
14-5
15-20
16-36
17-19
18-37
19-18
202
2123
221
23-22
24-46
25-21
26-47
27-74
28-102
29-73
30-43
31-12
32-44
33-11
34-45
35-10
3626
3763
3825
39-14
40-54
41-13
4229
4372
4428
45-17
46-63
47-16
4832
4981
5031
5182
5230
53-23
54-77
55-132
56-76
57-133

[20,19,17,14,10,5,-1,6,-2,7,-3,8,-4,9,-5,-20,-36,
 -19,-37,-18,2,23,1,-22,-46,-21,-47,-74,-102,-73,
 -43,-12,-44,-11,-45,-10,26,63,25,-14,-54,-13,29,
 72,28,-17,-63,-16,32,81,31,82,30,-23,-77,-132,-76,
 -133]