n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 14 |
5 | 90 |
6 | 182 |
7 | 7686 |
8 | 15374 |
9 | 1383750 |
10 | 19372514 |
11 | 10577393190 |
12 | 21154786382 |
13 | 2438935322096070 |
14 | 4877870644192142 |
15 | 224977149851430019446 |
16 | 286620888910721844775478 |
17 | 396611655030211352708069066250 |
18 | 793223310060422705416138132502 |
19 | 8436334593920261958919014477018674175558 |
[1,2,6,14,90,182,7686,15374,1383750,19372514, 10577393190,21154786382,2438935322096070, 4877870644192142,224977149851430019446, 286620888910721844775478, 396611655030211352708069066250, 793223310060422705416138132502, 8436334593920261958919014477018674175558] |