A177112 - OEIS

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A177112 as a simple table

n	a(n)
1	12
2	372
3	3972
4	39972
5	399972
6	3999972
7	39999972
8	399999972
9	3999999972
10	39999999972
11	399999999972
12	3999999999972
13	39999999999972
14	399999999999972
15	3999999999999972
16	39999999999999972
17	399999999999999972

[12,372,3972,39972,399972,3999972,39999972, 399999972,3999999972,39999999972,399999999972, 3999999999972,39999999999972,399999999999972, 3999999999999972,39999999999999972, 399999999999999972]