n | a(n) |
---|---|
1 | 7 |
2 | 56 |
3 | 455 |
4 | 3640 |
5 | 29127 |
6 | 233016 |
7 | 1864135 |
8 | 14913080 |
9 | 119304647 |
10 | 954437176 |
11 | 7635497415 |
12 | 61083979320 |
13 | 488671834567 |
14 | 3909374676536 |
15 | 31274997412295 |
16 | 250199979298360 |
17 | 2001599834386887 |
18 | 16012798675095096 |
19 | 128102389400760775 |
[7,56,455,3640,29127,233016,1864135,14913080, 119304647,954437176,7635497415,61083979320, 488671834567,3909374676536,31274997412295, 250199979298360,2001599834386887, 16012798675095096,128102389400760775] |