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A216100 as a simple table

na(n)
01
111
221
331
441
551
661
771
881
991
101
1111
1221
1331
1441
1551
1661
1771
1881
1991
201
2111
2221
2331
2441
2551
2661
2771
2881
2991
301
3111
3221
3331
3441
3551
3661
3771
3881
3991
401
4111
4221
4331
4441
4551
4661
4771
4881
4991
501

[1,11,21,31,41,51,61,71,81,91,1,11,21,31,41,51,61,
 71,81,91,1,11,21,31,41,51,61,71,81,91,1,11,21,31,
 41,51,61,71,81,91,1,11,21,31,41,51,61,71,81,91,1]