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A130909 as a simple table

na(n)
00
11
22
33
44
55
66
77
88
99
1010
1111
1212
1313
1414
1515
160
171
182
193
204
215
226
237
248
259
2610
2711
2812
2913
3014
3115
320
331
342
353
364
375
386
397
408
419
4210
4311
4412
4513
4614
4715
480
491
502
513
524
535
546
557
568
579
5810
5911
6012
6113
6214
6315
640
651
662
673
684
695
706
717
728
739
7410
7511
7612
7713
7814
7915
800
811
822
833
844
855
866
877
888
899

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