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A136448 as a simple table

na(n)
01
10
21
3-4
40
51
60
7-13
80
91
1064
110
12-29
130
141
150
16389
170
18-54
190
201
21-2304
220
231433
240
25-90
260
271
280
29-21365
300
314079
320
33-139
340
351
36147456
370
38-113077
390
409839
410
42-203
430
441
450
461878021
470
48-443476
490
5021098
510
52-284
530
541
55-14745600
560
5713185721
580
59-1427376
600
6141398
620
63-384
640
651

[1,0,1,-4,0,1,0,-13,0,1,64,0,-29,0,1,0,389,0,-54,
 0,1,-2304,0,1433,0,-90,0,1,0,-21365,0,4079,0,-139,
 0,1,147456,0,-113077,0,9839,0,-203,0,1,0,1878021,
 0,-443476,0,21098,0,-284,0,1,-14745600,0,13185721,
 0,-1427376,0,41398,0,-384,0,1]