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A141681 as a simple table

na(n)
11
2-4
31
4-9
50
61
732
8-12
90
101
11-25
120
130
140
151
16504
17-45
18-40
190
200
211
22-49
230
240
250
260
270
281
29-4096
301568
310
32-140
330
340
350
361
372187
380
39-252
400
410
420
430
440
451
4613400
47-225
480
490
50-504
510
520
530
540
551
56-121
570
580
590
600
610
620
630
640
650
661

[1,-4,1,-9,0,1,32,-12,0,1,-25,0,0,0,1,504,-45,-40,
 0,0,1,-49,0,0,0,0,0,1,-4096,1568,0,-140,0,0,0,1,
 2187,0,-252,0,0,0,0,0,1,13400,-225,0,0,-504,0,0,0,
 0,1,-121,0,0,0,0,0,0,0,0,0,1]