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A050761 as a simple table

na(n)
01
12
23
34
45
56
67
78
89
911
1015
1116
1217
1318
1419
1520
1621
1723
1824
1925
2026
2127
2230
2331
2432
2533
2636
2737
2839
2942
3047
3148
3250
3354
3457
3558
3661
3768
3870
3980
4086
41107
42134
43147
44151
45177

[1,2,3,4,5,6,7,8,9,11,15,16,17,18,19,20,21,23,24,
 25,26,27,30,31,32,33,36,37,39,42,47,48,50,54,57,
 58,61,68,70,80,86,107,134,147,151,177]