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A005555 as a simple table

na(n)
01
12
23
34
45
56
67
78
89
910
1011
1112
1213
1314
1415
1516
1620
1721
1822
1924
2025
2128
2229
2330
2431
2532
2634
2735
2836
2937
3038
3139
3240
3356
3457
3560
3661
3762
3863
3964
4070
4184
4285
4388
44110
45111
46112
47120
48156
49157
50159
51160
52166
53182
54184
55231
56232
57280
58399
59400
60520
61760
621240

[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,20,21,22,
 24,25,28,29,30,31,32,34,35,36,37,38,39,40,56,57,
 60,61,62,63,64,70,84,85,88,110,111,112,120,156,
 157,159,160,166,182,184,231,232,280,399,400,520,
 760,1240]