n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 24 |
4 | 169 |
5 | 557 |
6 | 4108 |
7 | 14040 |
8 | 104533 |
9 | 365722 |
10 | 2734747 |
11 | 9710957 |
12 | 72847186 |
13 | 261226274 |
14 | 1964845906 |
15 | 7094565566 |
16 | 53482760485 |
17 | 194106792191 |
18 | 1466023062226 |
19 | 5342045681862 |
20 | 40409217721285 |
21 | 147724548119380 |
22 | 1118883744204523 |
[1,7,24,169,557,4108,14040,104533,365722,2734747, 9710957,72847186,261226274,1964845906,7094565566, 53482760485,194106792191,1466023062226, 5342045681862,40409217721285,147724548119380, 1118883744204523] |