n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 18 |
4 | 136 |
5 | 1152 |
6 | 10458 |
7 | 99473 |
8 | 978480 |
9 | 9872181 |
10 | 101598389 |
11 | 1062382809 |
12 | 11255336235 |
13 | 120555453344 |
14 | 1303305334704 |
15 | 14202627395202 |
16 | 155847144409224 |
17 | 1720542786453765 |
18 | 19096869133735155 |
19 | 212977164179543266 |
20 | 2385405242723601582 |
21 | 26820428322385799784 |
22 | 302611771988083401990 |
[1,3,18,136,1152,10458,99473,978480,9872181, 101598389,1062382809,11255336235,120555453344, 1303305334704,14202627395202,155847144409224, 1720542786453765,19096869133735155, 212977164179543266,2385405242723601582, 26820428322385799784,302611771988083401990] |