A155670 - OEIS

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A155670 as a simple table

n	a(n)
0	1
1	19
2	201
3	2059
4	21201
5	220099
6	2303001
7	24270139
8	257405601
9	2745368179
10	29424209001
11	316692730219
12	3420857913201
13	37064577972259
14	402626626038201
15	4383139301510299
16	47802750052424001
17	522124210198960339

[1,19,201,2059,21201,220099,2303001,24270139, 257405601,2745368179,29424209001,316692730219, 3420857913201,37064577972259,402626626038201, 4383139301510299,47802750052424001, 522124210198960339]