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A157237 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
161
171
180
192
201
210
222
232
240
251
261
271
282
292
302
314
321
332
345
352
361
373
381
391
402
411
423
433
441
453
465
472
482
495
504
510
525
534
542
554
563
573
584
593
603

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