n | a(n) |
---|---|
1 | 2 |
2 | 7 |
3 | 39 |
4 | 265 |
5 | 1802 |
6 | 12239 |
7 | 84614 |
8 | 597601 |
9 | 4289844 |
10 | 31138558 |
11 | 227912351 |
12 | 1679866698 |
13 | 12457873439 |
14 | 92883320659 |
15 | 695746287346 |
16 | 5232714491851 |
17 | 39496475643074 |
18 | 299071199295812 |
19 | 2271081847307045 |
20 | 17290623003826450 |
[2,7,39,265,1802,12239,84614,597601,4289844, 31138558,227912351,1679866698,12457873439, 92883320659,695746287346,5232714491851, 39496475643074,299071199295812,2271081847307045, 17290623003826450] |