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A031248 as a simple table

na(n)
11
20
30
40
50
61
72
83
92
103
113
124
134
145
155
164
175
184
193
202
212
221
231
240
250
260
271
281
290
300
310
320
330
340
350
360
371
381
390
400
410
420
430
440
450
460
471
482
492
503
512
522
533
543
553
564
574
584
595
605
616
627
638
649
6510
669
6710
6811
6911
7012
7113
7213
7314
7415
7515
7614
7715
7816
7915
8016
8115
8214

[1,0,0,0,0,1,2,3,2,3,3,4,4,5,5,4,5,4,3,2,2,1,1,0,
 0,0,1,1,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,1,2,2,
 3,2,2,3,3,3,4,4,4,5,5,6,7,8,9,10,9,10,11,11,12,13,
 13,14,15,15,14,15,16,15,16,15,14]