A124262 - OEIS

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A124262 as a simple table

n	a(n)
1	2
2	19
3	181
4	1801
5	17989
6	179849
7	1798487
8	17984833
9	179848309
10	1798483067
11	17984830667
12	179848306667
13	1798483066669
14	17984830666651
15	179848306666507
16	1798483066665031
17	17984830666650269
18	179848306666502647

[2,19,181,1801,17989,179849,1798487,17984833, 179848309,1798483067,17984830667,179848306667, 1798483066669,17984830666651,179848306666507, 1798483066665031,17984830666650269, 179848306666502647]