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A039762 as a simple table

na(n)
01
10
21
31
4-2
51
6-6
711
8-6
91
1045
11-84
1250
13-12
141
15-420
16809
17-520
18150
19-20
201
214725
22-9390
236439
24-2100
25355
26-30
271
28-62370
29127539
30-92358
3133019
32-6510
33721
34-42
351
36945945
37-1984584
381505524
39-578984
40127694
41-16856
421316
43-56
441
45-16216200
4634812945
47-27491616
4811228300
49-2702448
50405174
51-38304
522220
53-72
541

[1,0,1,1,-2,1,-6,11,-6,1,45,-84,50,-12,1,-420,809,
 -520,150,-20,1,4725,-9390,6439,-2100,355,-30,1,
 -62370,127539,-92358,33019,-6510,721,-42,1,945945,
 -1984584,1505524,-578984,127694,-16856,1316,-56,1,
 -16216200,34812945,-27491616,11228300,-2702448,
 405174,-38304,2220,-72,1]