n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 19 |
5 | 111 |
6 | 734 |
7 | 5338 |
8 | 41839 |
9 | 348827 |
10 | 3065255 |
11 | 28199803 |
12 | 270253498 |
13 | 2687629926 |
14 | 27652068276 |
15 | 293627150268 |
16 | 3211604669731 |
17 | 36124424800797 |
18 | 417294625090201 |
19 | 4944772338009206 |
20 | 60045368928594948 |
21 | 746560751627818906 |
22 | 9496624640844863631 |
23 | 123507266690219103213 |
[1,2,4,19,111,734,5338,41839,348827,3065255, 28199803,270253498,2687629926,27652068276, 293627150268,3211604669731,36124424800797, 417294625090201,4944772338009206, 60045368928594948,746560751627818906, 9496624640844863631,123507266690219103213] |