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A274650 as a simple table

na(n)
00
11
22
33
40
51
62
74
83
95
105
111
120
132
143
154
163
175
181
196
207
216
227
232
240
255
264
278
288
295
309
314
327
332
3410
356
367
3710
388
393
400
416
429
435
444
4511
466
4712
487
491
508
513
5210
539
5413
559
568
574
5811
592
600
611
6212
636
647
6510
6610
6711
687
6912
704
713
722
739
748
7514
7613
7715
7812
799
8010
816
828
831
840
8511
867
874
8816
8914
9017

[0,1,2,3,0,1,2,4,3,5,5,1,0,2,3,4,3,5,1,6,7,6,7,2,
 0,5,4,8,8,5,9,4,7,2,10,6,7,10,8,3,0,6,9,5,4,11,6,
 12,7,1,8,3,10,9,13,9,8,4,11,2,0,1,12,6,7,10,10,11,
 7,12,4,3,2,9,8,14,13,15,12,9,10,6,8,1,0,11,7,4,16,
 14,17]