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A004489 as a simple table

na(n)
00
11
21
32
42
52
63
70
80
93
104
114
121
134
144
155
165
175
185
195
205
216
223
233
246
253
263
276
287
297
304
317
327
334
347
357
368
378
388
398
408
418
428
438
448
459
466
476
480
496
506
510
526
536
549
5510
5610
577
581
591
607
611
621
637
6410
6510
6611
6711
6811
692
702
712
722
732
742
7511
7611
7711
7812
799
809
8112
820
830
843
850
860
8712
889
899
9012
9113
9213
9310
9413
9513
961
974
984
991
10013
10113
10210
10313
10413

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