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A368405 as a simple table

na(n)
11
20
3-1
4-2
5-3
6-2
7-3
8-2
9-3
10-2
11-3
12-2
13-3
14-2
15-1
16-2
17-3
18-2
19-3
20-2
21-1
220
23-1
24-2
25-3
26-2
27-1
280
29-1
30-2
31-3
32-2
33-1
340
351
362
371
382
393
402
411
420
43-1
440
451
462
471
482
491
502
513
524
533
542
553
562
573
584
593
602
611
622
633
644
655
664
673
684
695
704
713
722
731
742
753
764
775

[1,0,-1,-2,-3,-2,-3,-2,-3,-2,-3,-2,-3,-2,-1,-2,-3,
 -2,-3,-2,-1,0,-1,-2,-3,-2,-1,0,-1,-2,-3,-2,-1,0,1,
 2,1,2,3,2,1,0,-1,0,1,2,1,2,1,2,3,4,3,2,3,2,3,4,3,
 2,1,2,3,4,5,4,3,4,5,4,3,2,1,2,3,4,5]