| n | a(n) |
|---|---|
| 1 | 74 |
| 2 | 212 |
| 3 | 555 |
| 4 | 891 |
| 5 | 2419 |
| 6 | 6121 |
| 7 | 13693 |
| 8 | 38041 |
| 9 | 99753 |
| 10 | 256077 |
| 11 | 702265 |
| 12 | 1904821 |
| 13 | 5140593 |
| 14 | 14093533 |
| 15 | 38567033 |
| 16 | 105514613 |
| 17 | 289594209 |
| 18 | 794670109 |
| 19 | 2180840713 |
| 20 | 5989829701 |
| 21 | 16450772689 |
| 22 | 45183870253 |
| 23 | 124126578969 |
| 24 | 340996458069 |
[74,212,555,891,2419,6121,13693,38041,99753, 256077,702265,1904821,5140593,14093533,38567033, 105514613,289594209,794670109,2180840713, 5989829701,16450772689,45183870253,124126578969, 340996458069] |