n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 38 |
4 | 240 |
5 | 1509 |
6 | 12115 |
7 | 96326 |
8 | 929432 |
9 | 9421089 |
10 | 108909943 |
11 | 1249105054 |
12 | 17862483320 |
13 | 241674418101 |
14 | 3676733397363 |
15 | 59149265744302 |
16 | 1058605924855568 |
17 | 18041587282787489 |
18 | 363409114370324295 |
19 | 6970858463185187062 |
20 | 153017341796727034336 |
21 | 3360005220780469981157 |
[1,7,38,240,1509,12115,96326,929432,9421089, 108909943,1249105054,17862483320,241674418101, 3676733397363,59149265744302,1058605924855568, 18041587282787489,363409114370324295, 6970858463185187062,153017341796727034336, 3360005220780469981157] |